15397868952 has 24 divisors (see below), whose sum is σ = 41702561940. Its totient is φ = 5132622960.

The previous prime is 15397868947. The next prime is 15397868953. The reversal of 15397868952 is 25986879351.

15397868952 is a `hidden beast` number, since 1 + 539 + 7 + 8 + 6 + 8 + 95 + 2 = 666.

15397868952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 15397868952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15397868953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106929574 + ... + 106929717.

Almost surely, 2^15397868952 is an apocalyptic number.

15397868952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15397868952 is an abundant number, since it is smaller than the sum of its proper divisors (26304692988).

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

15397868952 is a wasteful number, since it uses less digits than its factorization.

15397868952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213859303 (or 213859296 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 15397868952 in words is "fifteen billion, three hundred ninety-seven million, eight hundred sixty-eight thousand, nine hundred fifty-two".