84577604880 has 80 divisors (see below), whose sum is σ = 262480325184. Its totient is φ = 22529103360.

The previous prime is 84577604879. The next prime is 84577604957. The reversal of 84577604880 is 8840677548.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 84577604880.

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, 23410 + ... + 411950.

Almost surely, 2^84577604880 is an apocalyptic number.

84577604880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84577604880 is an abundant number, since it is smaller than the sum of its proper divisors (177902720304).

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

84577604880 is a wasteful number, since it uses less digits than its factorization.

84577604880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389464 (or 389458 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 84577604880 in words is "eighty-four billion, five hundred seventy-seven million, six hundred four thousand, eight hundred eighty".