10520687808 has 56 divisors (see below), whose sum is σ = 30928878960. Its totient is φ = 3506895360.

The previous prime is 10520687791. The next prime is 10520687839. The reversal of 10520687808 is 80878602501.

It is a super-2 number, since 2×10520687808² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3042453 + ... + 3045908.

It is an arithmetic number, because the mean of its divisors is an integer number (552301410).

Almost surely, 2^10520687808 is an apocalyptic number.

10520687808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10520687808 is an abundant number, since it is smaller than the sum of its proper divisors (20408191152).

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

10520687808 is an equidigital number, since it uses as much as digits as its factorization.

10520687808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088382 (or 6088366 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 10520687808 in words is "ten billion, five hundred twenty million, six hundred eighty-seven thousand, eight hundred eight".