10815799860 has 48 divisors (see below), whose sum is σ = 33649156800. Its totient is φ = 2884213152.

The previous prime is 10815799853. The next prime is 10815799879. The reversal of 10815799860 is 6899751801.

10815799860 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 579 + 9 + 8 + 60 = 666.

It is a super-2 number, since 2×10815799860² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 10815799797 and 10815799806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10014090 + ... + 10015169.

It is an arithmetic number, because the mean of its divisors is an integer number (701024100).

Almost surely, 2^10815799860 is an apocalyptic number.

10815799860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10815799860 is an abundant number, since it is smaller than the sum of its proper divisors (22833356940).

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

10815799860 is a wasteful number, since it uses less digits than its factorization.

10815799860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20029277 (or 20029269 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 10815799860 in words is "ten billion, eight hundred fifteen million, seven hundred ninety-nine thousand, eight hundred sixty".