10856943944 has 64 divisors (see below), whose sum is σ = 25429334400. Its totient is φ = 4221734400.

The previous prime is 10856943931. The next prime is 10856943959. The reversal of 10856943944 is 44934965801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304022 + ... + 337850.

It is an arithmetic number, because the mean of its divisors is an integer number (397333350).

Almost surely, 2^10856943944 is an apocalyptic number.

10856943944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10856943944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12714667200).

10856943944 is an abundant number, since it is smaller than the sum of its proper divisors (14572390456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10856943944 is a wasteful number, since it uses less digits than its factorization.

10856943944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34374 (or 34370 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 10856943944 in words is "ten billion, eight hundred fifty-six million, nine hundred forty-three thousand, nine hundred forty-four".