77725527132 has 24 divisors (see below), whose sum is σ = 197846796672. Its totient is φ = 23553190000.

The previous prime is 77725527107. The next prime is 77725527239. The reversal of 77725527132 is 23172552777.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294414744 + ... + 294415007.

It is an arithmetic number, because the mean of its divisors is an integer number (8243616528).

Almost surely, 2^77725527132 is an apocalyptic number.

It is an amenable number.

77725527132 is an abundant number, since it is smaller than the sum of its proper divisors (120121269540).

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

77725527132 is a wasteful number, since it uses less digits than its factorization.

77725527132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588829769 (or 588829767 counting only the distinct ones).

The product of its digits is 1440600, while the sum is 48.

The spelling of 77725527132 in words is "seventy-seven billion, seven hundred twenty-five million, five hundred twenty-seven thousand, one hundred thirty-two".