77756352632 has 128 divisors (see below), whose sum is σ = 184321059840. Its totient is φ = 29963028480.

The previous prime is 77756352623. The next prime is 77756352703. The reversal of 77756352632 is 23625365777.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23229983 + ... + 23233329.

It is an arithmetic number, because the mean of its divisors is an integer number (1440008280).

Almost surely, 2^77756352632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77756352632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92160529920).

77756352632 is an abundant number, since it is smaller than the sum of its proper divisors (106564707208).

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

77756352632 is a wasteful number, since it uses less digits than its factorization.

77756352632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461 (or 4457 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 53.

The spelling of 77756352632 in words is "seventy-seven billion, seven hundred fifty-six million, three hundred fifty-two thousand, six hundred thirty-two".