77253584738 has 54 divisors (see below), whose sum is σ = 135434752929. Its totient is φ = 33018216000.

The previous prime is 77253584701. The next prime is 77253584741. The reversal of 77253584738 is 83748535277.

It can be written as a sum of positive squares in 2 ways, for example, as 70704405409 + 6549179329 = 265903^2 + 80927^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=196537.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 73504313 + ... + 73505363.

Almost surely, 2^77253584738 is an apocalyptic number.

77253584738 is a deficient number, since it is larger than the sum of its proper divisors (58181168191).

77253584738 is a wasteful number, since it uses less digits than its factorization.

77253584738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 1081 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 59.

The spelling of 77253584738 in words is "seventy-seven billion, two hundred fifty-three million, five hundred eighty-four thousand, seven hundred thirty-eight".