77293477168 has 10 divisors (see below), whose sum is σ = 149756112044. Its totient is φ = 38646738576.

The previous prime is 77293477141. The next prime is 77293477171. The reversal of 77293477168 is 86177439277.

It is a super-2 number, since 2×77293477168² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2415421146 + ... + 2415421177.

Almost surely, 2^77293477168 is an apocalyptic number.

It is an amenable number.

77293477168 is a deficient number, since it is larger than the sum of its proper divisors (72462634876).

77293477168 is a wasteful number, since it uses less digits than its factorization.

77293477168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830842331 (or 4830842325 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 61.

The spelling of 77293477168 in words is "seventy-seven billion, two hundred ninety-three million, four hundred seventy-seven thousand, one hundred sixty-eight".