6240846781 has 8 divisors (see below), whose sum is σ = 6722536184. Its totient is φ = 5759389440.

The previous prime is 6240846769. The next prime is 6240846791. The reversal of 6240846781 is 1876480426.

6240846781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

6240846781 is a nontrivial binomial coefficient, being equal to C(111722, 2).

It can be written as a sum of positive squares in 4 ways, for example, as 17056900 + 6223789881 = 4130^2 + 78891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6240846781 is a prime.

It is a super-2 number, since 2×6240846781² = 77896337087836123922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6240846791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 111721.

It is an arithmetic number, because the mean of its divisors is an integer number (840317023).

Almost surely, 2^6240846781 is an apocalyptic number.

6240846781 is the 111721-st triangular number and also the 55861-st hexagonal number.

6240846781 is the 37241-st centered nonagonal number.

It is an amenable number.

6240846781 is a deficient number, since it is larger than the sum of its proper divisors (481689403).

6240846781 is a wasteful number, since it uses less digits than its factorization.

6240846781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116031.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 6240846781 is about 78999.0302535417. The cubic root of 6240846781 is about 1841.1160900661.

The spelling of 6240846781 in words is "six billion, two hundred forty million, eight hundred forty-six thousand, seven hundred eighty-one".