10810439920 has 80 divisors (see below), whose sum is σ = 29336122368. Its totient is φ = 3627567360.

The previous prime is 10810439909. The next prime is 10810439929. The reversal of 10810439920 is 2993401801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10810439920² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10810439920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10810439929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179046 + ... + 231685.

Almost surely, 2^10810439920 is an apocalyptic number.

10810439920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10810439920 is an abundant number, since it is smaller than the sum of its proper divisors (18525682448).

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

10810439920 is a wasteful number, since it uses less digits than its factorization.

10810439920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410798 (or 410792 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 10810439920 in words is "ten billion, eight hundred ten million, four hundred thirty-nine thousand, nine hundred twenty".