10400510520 has 48 divisors (see below), whose sum is σ = 33801660360. Its totient is φ = 2773469376.

The previous prime is 10400510401. The next prime is 10400510521. The reversal of 10400510520 is 2501500401.

10400510520 is a `hidden beast` number, since 104 + 0 + 0 + 510 + 52 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10400510493 and 10400510502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10400510521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14444794 + ... + 14445513.

Almost surely, 2^10400510520 is an apocalyptic number.

10400510520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400510520 is an abundant number, since it is smaller than the sum of its proper divisors (23401149840).

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

10400510520 is a wasteful number, since it uses less digits than its factorization.

10400510520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28890324 (or 28890317 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The spelling of 10400510520 in words is "ten billion, four hundred million, five hundred ten thousand, five hundred twenty".