77338038081 has 16 divisors (see below), whose sum is σ = 103591482624. Its totient is φ = 51321730704.

The previous prime is 77338038031. The next prime is 77338038101. The reversal of 77338038081 is 18083083377.

It is not a de Polignac number, because 77338038081 - 2¹⁵ = 77338005313 is a prime.

It is a super-2 number, since 2×77338038081² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77338038081.

It is not an unprimeable number, because it can be changed into a prime (77338038031) 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, 5922946 + ... + 5935988.

It is an arithmetic number, because the mean of its divisors is an integer number (6474467664).

Almost surely, 2^77338038081 is an apocalyptic number.

It is an amenable number.

77338038081 is a deficient number, since it is larger than the sum of its proper divisors (26253444543).

77338038081 is a wasteful number, since it uses less digits than its factorization.

77338038081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21980.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 77338038081 in words is "seventy-seven billion, three hundred thirty-eight million, thirty-eight thousand, eighty-one".