77067065432 has 32 divisors (see below), whose sum is σ = 167942764800. Its totient is φ = 32468931744.

The previous prime is 77067065429. The next prime is 77067065489. The reversal of 77067065432 is 23456076077.

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, 11659388 + ... + 11665995.

It is an arithmetic number, because the mean of its divisors is an integer number (5248211400).

Almost surely, 2^77067065432 is an apocalyptic number.

It is an amenable number.

77067065432 is an abundant number, since it is smaller than the sum of its proper divisors (90875699368).

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

77067065432 is a wasteful number, since it uses less digits than its factorization.

77067065432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23325455 (or 23325451 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 77067065432 in words is "seventy-seven billion, sixty-seven million, sixty-five thousand, four hundred thirty-two".