15882321264 has 80 divisors (see below), whose sum is σ = 44844272640. Its totient is φ = 4821949440.

The previous prime is 15882321223. The next prime is 15882321289. The reversal of 15882321264 is 46212328851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288634 + ... + 339225.

It is an arithmetic number, because the mean of its divisors is an integer number (560553408).

Almost surely, 2^15882321264 is an apocalyptic number.

It is an amenable number.

15882321264 is an abundant number, since it is smaller than the sum of its proper divisors (28961951376).

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

15882321264 is a wasteful number, since it uses less digits than its factorization.

15882321264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627918 (or 627912 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The spelling of 15882321264 in words is "fifteen billion, eight hundred eighty-two million, three hundred twenty-one thousand, two hundred sixty-four".