10749540781 has 8 divisors (see below), whose sum is σ = 12367641600. Its totient is φ = 9152053008.

The previous prime is 10749540779. The next prime is 10749540787. The reversal of 10749540781 is 18704594701.

It is a happy number.

10749540781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10749540781 - 2¹ = 10749540779 is a prime.

It is a super-2 number, since 2×10749540781² (a number of 21 digits) 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 (10749540787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5152141 + ... + 5154226.

It is an arithmetic number, because the mean of its divisors is an integer number (1545955200).

Almost surely, 2^10749540781 is an apocalyptic number.

It is an amenable number.

10749540781 is a deficient number, since it is larger than the sum of its proper divisors (1618100819).

10749540781 is a wasteful number, since it uses less digits than its factorization.

10749540781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306523.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 10749540781 in words is "ten billion, seven hundred forty-nine million, five hundred forty thousand, seven hundred eighty-one".