15439670952 has 16 divisors (see below), whose sum is σ = 38599177440. Its totient is φ = 5146556976.

The previous prime is 15439670951. The next prime is 15439670999. The reversal of 15439670952 is 25907693451.

It is a junction number, because it is equal to n+sod(n) for n = 15439670895 and 15439670904.

It is not an unprimeable number, because it can be changed into a prime (15439670951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321659788 + ... + 321659835.

It is an arithmetic number, because the mean of its divisors is an integer number (2412448590).

Almost surely, 2^15439670952 is an apocalyptic number.

15439670952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15439670952 is an abundant number, since it is smaller than the sum of its proper divisors (23159506488).

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

15439670952 is a wasteful number, since it uses less digits than its factorization.

15439670952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643319632 (or 643319628 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 15439670952 in words is "fifteen billion, four hundred thirty-nine million, six hundred seventy thousand, nine hundred fifty-two".