77405057013 has 32 divisors (see below), whose sum is σ = 110252482560. Its totient is φ = 48197983680.

The previous prime is 77405056997. The next prime is 77405057027. The reversal of 77405057013 is 31075050477.

It is not a de Polignac number, because 77405057013 - 2⁴ = 77405056997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77405057083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10857256 + ... + 10864382.

It is an arithmetic number, because the mean of its divisors is an integer number (3445390080).

Almost surely, 2^77405057013 is an apocalyptic number.

It is an amenable number.

77405057013 is a deficient number, since it is larger than the sum of its proper divisors (32847425547).

77405057013 is a wasteful number, since it uses less digits than its factorization.

77405057013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11217.

The product of its (nonzero) digits is 102900, while the sum is 39.

The spelling of 77405057013 in words is "seventy-seven billion, four hundred five million, fifty-seven thousand, thirteen".