77738483064507 has 16 divisors (see below), whose sum is σ = 111608589847680. Its totient is φ = 47950357116032.

The previous prime is 77738483064457. The next prime is 77738483064533. The reversal of 77738483064507 is 70546038483777.

It is a cyclic number.

It is not a de Polignac number, because 77738483064507 - 2⁶ = 77738483064443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77738483064587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12917657853 + ... + 12917663870.

It is an arithmetic number, because the mean of its divisors is an integer number (6975536865480).

Almost surely, 2^{77738483064507} is an apocalyptic number.

77738483064507 is a deficient number, since it is larger than the sum of its proper divisors (33870106783173).

77738483064507 is a wasteful number, since it uses less digits than its factorization.

77738483064507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25835321802.

The product of its (nonzero) digits is 663828480, while the sum is 69.

The spelling of 77738483064507 in words is "seventy-seven trillion, seven hundred thirty-eight billion, four hundred eighty-three million, sixty-four thousand, five hundred seven".