77366231845 has 16 divisors (see below), whose sum is σ = 106688469888. Its totient is φ = 52758025920.

The previous prime is 77366231791. The next prime is 77366231849. The reversal of 77366231845 is 54813266377.

It is not a de Polignac number, because 77366231845 - 2¹³ = 77366223653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77366231792 and 77366231801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77366231849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6099919 + ... + 6112588.

It is an arithmetic number, because the mean of its divisors is an integer number (6668029368).

Almost surely, 2^77366231845 is an apocalyptic number.

It is an amenable number.

77366231845 is a deficient number, since it is larger than the sum of its proper divisors (29322238043).

77366231845 is a wasteful number, since it uses less digits than its factorization.

77366231845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212700.

The product of its digits is 5080320, while the sum is 52.

The spelling of 77366231845 in words is "seventy-seven billion, three hundred sixty-six million, two hundred thirty-one thousand, eight hundred forty-five".