77136006056 has 8 divisors (see below), whose sum is σ = 144630011370. Its totient is φ = 38568003024.

The previous prime is 77136006049. The next prime is 77136006061. The reversal of 77136006056 is 65060063177.

It can be written as a sum of positive squares in only one way, i.e., 59755802500 + 17380203556 = 244450^2 + 131834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4821000371 + ... + 4821000386.

Almost surely, 2^77136006056 is an apocalyptic number.

It is an amenable number.

77136006056 is a deficient number, since it is larger than the sum of its proper divisors (67494005314).

77136006056 is a wasteful number, since it uses less digits than its factorization.

77136006056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642000763 (or 9642000759 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 77136006056 in words is "seventy-seven billion, one hundred thirty-six million, six thousand, fifty-six".