77504225080 has 32 divisors (see below), whose sum is σ = 174548960640. Its totient is φ = 30972453760.

The previous prime is 77504225069. The next prime is 77504225111. The reversal of 77504225080 is 8052240577.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 870664 + ... + 955543.

It is an arithmetic number, because the mean of its divisors is an integer number (5454655020).

Almost surely, 2^77504225080 is an apocalyptic number.

It is an amenable number.

77504225080 is an abundant number, since it is smaller than the sum of its proper divisors (97044735560).

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

77504225080 is a wasteful number, since it uses less digits than its factorization.

77504225080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827279 (or 1827275 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 77504225080 in words is "seventy-seven billion, five hundred four million, two hundred twenty-five thousand, eighty".