15105809772 has 48 divisors (see below), whose sum is σ = 39192367200. Its totient is φ = 5031521280.

The previous prime is 15105809717. The next prime is 15105809791. The reversal of 15105809772 is 27790850151.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95604 + ... + 198372.

It is an arithmetic number, because the mean of its divisors is an integer number (816507650).

Almost surely, 2^15105809772 is an apocalyptic number.

15105809772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15105809772 is an abundant number, since it is smaller than the sum of its proper divisors (24086557428).

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

15105809772 is a wasteful number, since it uses less digits than its factorization.

15105809772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104143 (or 104135 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The spelling of 15105809772 in words is "fifteen billion, one hundred five million, eight hundred nine thousand, seven hundred seventy-two".