77953958332 has 6 divisors (see below), whose sum is σ = 136419427088. Its totient is φ = 38976979164.

The previous prime is 77953958321. The next prime is 77953958363. The reversal of 77953958332 is 23385935977.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9744244788 + ... + 9744244795.

Almost surely, 2^77953958332 is an apocalyptic number.

It is an amenable number.

77953958332 is a deficient number, since it is larger than the sum of its proper divisors (58465468756).

77953958332 is a wasteful number, since it uses less digits than its factorization.

77953958332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19488489587 (or 19488489585 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 61.

The spelling of 77953958332 in words is "seventy-seven billion, nine hundred fifty-three million, nine hundred fifty-eight thousand, three hundred thirty-two".