77735933768 has 16 divisors (see below), whose sum is σ = 145760451180. Its totient is φ = 38866480128.

The previous prime is 77735933753. The next prime is 77735933791. The reversal of 77735933768 is 86733953777.

It can be written as a sum of positive squares in 2 ways, for example, as 76974063364 + 761870404 = 277442^2 + 27602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54680 + ... + 398072.

Almost surely, 2^77735933768 is an apocalyptic number.

It is an amenable number.

77735933768 is a deficient number, since it is larger than the sum of its proper divisors (68024517412).

77735933768 is a wasteful number, since it uses less digits than its factorization.

77735933768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371696 (or 371692 counting only the distinct ones).

The product of its digits is 140026320, while the sum is 65.

The spelling of 77735933768 in words is "seventy-seven billion, seven hundred thirty-five million, nine hundred thirty-three thousand, seven hundred sixty-eight".