64275973860 has 48 divisors (see below), whose sum is σ = 205683117696. Its totient is φ = 14691651072.

The previous prime is 64275973849. The next prime is 64275973919. The reversal of 64275973860 is 6837957246.

It is a self number, because there is not a number n which added to its sum of digits gives 64275973860.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76518597 + ... + 76519436.

It is an arithmetic number, because the mean of its divisors is an integer number (4285064952).

Almost surely, 2^64275973860 is an apocalyptic number.

64275973860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64275973860 is an abundant number, since it is smaller than the sum of its proper divisors (141407143836).

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

64275973860 is a wasteful number, since it uses less digits than its factorization.

64275973860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153038052 (or 153038050 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 64275973860 in words is "sixty-four billion, two hundred seventy-five million, nine hundred seventy-three thousand, eight hundred sixty".