77813247510611 has 16 divisors (see below), whose sum is σ = 77971693793664. Its totient is φ = 77655007545984.

The previous prime is 77813247510601. The next prime is 77813247510623. The reversal of 77813247510611 is 11601574231877.

It is a cyclic number.

It is not a de Polignac number, because 77813247510611 - 2⁶ = 77813247510547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77813247510601) 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, 4641955916 + ... + 4641972678.

It is an arithmetic number, because the mean of its divisors is an integer number (4873230862104).

Almost surely, 2^{77813247510611} is an apocalyptic number.

77813247510611 is a deficient number, since it is larger than the sum of its proper divisors (158446283053).

77813247510611 is a wasteful number, since it uses less digits than its factorization.

77813247510611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22370.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 77813247510611 in words is "seventy-seven trillion, eight hundred thirteen billion, two hundred forty-seven million, five hundred ten thousand, six hundred eleven".