15105785852 has 24 divisors (see below), whose sum is σ = 26628087024. Its totient is φ = 7497931392.

The previous prime is 15105785839. The next prime is 15105785899. The reversal of 15105785852 is 25858750151.

It is a junction number, because it is equal to n+sod(n) for n = 15105785797 and 15105785806.

It is a congruent number.

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, 339143 + ... + 381089.

It is an arithmetic number, because the mean of its divisors is an integer number (1109503626).

Almost surely, 2^15105785852 is an apocalyptic number.

It is an amenable number.

15105785852 is a deficient number, since it is larger than the sum of its proper divisors (11522301172).

15105785852 is a wasteful number, since it uses less digits than its factorization.

15105785852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42605 (or 42603 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 47.

The spelling of 15105785852 in words is "fifteen billion, one hundred five million, seven hundred eighty-five thousand, eight hundred fifty-two".