6012663781 has 4 divisors (see below), whose sum is σ = 6023344032. Its totient is φ = 6001983532.

The previous prime is 6012663779. The next prime is 6012663821. The reversal of 6012663781 is 1873662106.

It is a happy number.

6012663781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6012663781 - 2¹ = 6012663779 is a prime.

It is a super-2 number, since 2×6012663781² = 72304251486698431922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6012664781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5339281 + ... + 5340406.

It is an arithmetic number, because the mean of its divisors is an integer number (1505836008).

Almost surely, 2^6012663781 is an apocalyptic number.

It is an amenable number.

6012663781 is a deficient number, since it is larger than the sum of its proper divisors (10680251).

6012663781 is a wasteful number, since it uses less digits than its factorization.

6012663781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680250.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6012663781 is about 77541.3681914370. The cubic root of 6012663781 is about 1818.3981176390.

The spelling of 6012663781 in words is "six billion, twelve million, six hundred sixty-three thousand, seven hundred eighty-one".