77746034751872 has 96 divisors (see below), whose sum is σ = 164713388657400. Its totient is φ = 36545943582720.

The previous prime is 77746034751863. The next prime is 77746034751877. The reversal of 77746034751872 is 27815743064777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77746034751877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368597 + ... + 12475092.

Almost surely, 2^{77746034751872} is an apocalyptic number.

It is an amenable number.

77746034751872 is an abundant number, since it is smaller than the sum of its proper divisors (86967353905528).

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

77746034751872 is a wasteful number, since it uses less digits than its factorization.

77746034751872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843872 (or 12843841 counting only the distinct ones).

The product of its (nonzero) digits is 387233280, while the sum is 68.

The spelling of 77746034751872 in words is "seventy-seven trillion, seven hundred forty-six billion, thirty-four million, seven hundred fifty-one thousand, eight hundred seventy-two".