879555646480 has 80 divisors (see below), whose sum is σ = 2474581795200. Its totient is φ = 283822995456.

The previous prime is 879555646433. The next prime is 879555646483. The reversal of 879555646480 is 84646555978.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (879555646483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46185630 + ... + 46204669.

It is an arithmetic number, because the mean of its divisors is an integer number (30932272440).

Almost surely, 2^879555646480 is an apocalyptic number.

879555646480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

879555646480 is an abundant number, since it is smaller than the sum of its proper divisors (1595026148720).

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

879555646480 is a wasteful number, since it uses less digits than its factorization.

879555646480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92390336 (or 92390330 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 67.

The spelling of 879555646480 in words is "eight hundred seventy-nine billion, five hundred fifty-five million, six hundred forty-six thousand, four hundred eighty".