77274675632 has 160 divisors (see below), whose sum is σ = 193039454208. Its totient is φ = 29082240000.

The previous prime is 77274675617. The next prime is 77274675679. The reversal of 77274675632 is 23657647277.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 25243382 + ... + 25246442.

Almost surely, 2^77274675632 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 77274675632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96519727104).

77274675632 is an abundant number, since it is smaller than the sum of its proper divisors (115764778576).

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

77274675632 is a wasteful number, since it uses less digits than its factorization.

77274675632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779 (or 3773 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 56.

The spelling of 77274675632 in words is "seventy-seven billion, two hundred seventy-four million, six hundred seventy-five thousand, six hundred thirty-two".