84772070780 has 24 divisors (see below), whose sum is σ = 179654576640. Its totient is φ = 33597737280.

The previous prime is 84772070767. The next prime is 84772070791. The reversal of 84772070780 is 8707027748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19440956 + ... + 19445315.

It is an arithmetic number, because the mean of its divisors is an integer number (7485607360).

Almost surely, 2^84772070780 is an apocalyptic number.

It is an amenable number.

84772070780 is an abundant number, since it is smaller than the sum of its proper divisors (94882505860).

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

84772070780 is a wasteful number, since it uses less digits than its factorization.

84772070780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38886389 (or 38886387 counting only the distinct ones).

The product of its (nonzero) digits is 1229312, while the sum is 50.

The spelling of 84772070780 in words is "eighty-four billion, seven hundred seventy-two million, seventy thousand, seven hundred eighty".