77117053332672 has 42 divisors (see below), whose sum is σ = 221042109467348. Its totient is φ = 25705684444032.

The previous prime is 77117053332659. The next prime is 77117053332689. The reversal of 77117053332672 is 27623335071177.

77117053332672 is a `hidden beast` number, since 7 + 7 + 1 + 1 + 7 + 0 + 533 + 32 + 6 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66941885998 + ... + 66941887149.

Almost surely, 2^{77117053332672} is an apocalyptic number.

77117053332672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

77117053332672 is an abundant number, since it is smaller than the sum of its proper divisors (143925056134676).

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

77117053332672 is a wasteful number, since it uses less digits than its factorization.

77117053332672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133883773165 (or 133883773152 counting only the distinct ones).

The product of its (nonzero) digits is 7779240, while the sum is 54.

The spelling of 77117053332672 in words is "seventy-seven trillion, one hundred seventeen billion, fifty-three million, three hundred thirty-two thousand, six hundred seventy-two".