15399201880 has 32 divisors (see below), whose sum is σ = 34652481840. Its totient is φ = 6158920320.

The previous prime is 15399201877. The next prime is 15399201907. The reversal of 15399201880 is 8810299351.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 15399201880.

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, 395695 + ... + 432865.

Almost surely, 2^15399201880 is an apocalyptic number.

15399201880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15399201880 is an abundant number, since it is smaller than the sum of its proper divisors (19253279960).

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

15399201880 is a wasteful number, since it uses less digits than its factorization.

15399201880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47539 (or 47535 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 15399201880 in words is "fifteen billion, three hundred ninety-nine million, two hundred one thousand, eight hundred eighty".