15105783112 has 32 divisors (see below), whose sum is σ = 33030144000. Its totient is φ = 6473905872.

The previous prime is 15105783107. The next prime is 15105783151. The reversal of 15105783112 is 21138750151.

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, 2749768 + ... + 2755255.

It is an arithmetic number, because the mean of its divisors is an integer number (1032192000).

Almost surely, 2^15105783112 is an apocalyptic number.

It is an amenable number.

15105783112 is an abundant number, since it is smaller than the sum of its proper divisors (17924360888).

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

15105783112 is an equidigital number, since it uses as much as digits as its factorization.

15105783112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505050 (or 5505032 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 34.

The spelling of 15105783112 in words is "fifteen billion, one hundred five million, seven hundred eighty-three thousand, one hundred twelve".