10515015400 has 48 divisors (see below), whose sum is σ = 24861801600. Its totient is φ = 4134713280.

The previous prime is 10515015391. The next prime is 10515015421. The reversal of 10515015400 is 451051501.

It is a happy number.

It is a super-2 number, since 2×10515015400² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433752 + ... + 457351.

It is an arithmetic number, because the mean of its divisors is an integer number (517954200).

Almost surely, 2^10515015400 is an apocalyptic number.

10515015400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10515015400 is an abundant number, since it is smaller than the sum of its proper divisors (14346786200).

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

10515015400 is a wasteful number, since it uses less digits than its factorization.

10515015400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891178 (or 891169 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 10515015400 its reverse (451051501), we get a palindrome (10966066901).

The spelling of 10515015400 in words is "ten billion, five hundred fifteen million, fifteen thousand, four hundred".