15861276960 has 48 divisors (see below), whose sum is σ = 49963023936. Its totient is φ = 4229673728.

The previous prime is 15861276953. The next prime is 15861276961. The reversal of 15861276960 is 6967216851.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (15861276961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16521684 + ... + 16522643.

It is an arithmetic number, because the mean of its divisors is an integer number (1040896332).

Almost surely, 2^15861276960 is an apocalyptic number.

15861276960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15861276960 is an abundant number, since it is smaller than the sum of its proper divisors (34101746976).

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

15861276960 is a wasteful number, since it uses less digits than its factorization.

15861276960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33044345 (or 33044337 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 15861276960 in words is "fifteen billion, eight hundred sixty-one million, two hundred seventy-six thousand, nine hundred sixty".