77204160205389 has 96 divisors (see below), whose sum is σ = 133318024519680. Its totient is φ = 42126006960000.

The previous prime is 77204160205349. The next prime is 77204160205391. The reversal of 77204160205389 is 98350206140277.

It is a happy number.

77204160205389 is a `hidden beast` number, since 7 + 7 + 2 + 0 + 41 + 60 + 2 + 0 + 538 + 9 = 666.

It is not a de Polignac number, because 77204160205389 - 2⁷ = 77204160205261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77204160205349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51715767 + ... + 53187675.

It is an arithmetic number, because the mean of its divisors is an integer number (1388729422080).

It is a 1-persistent number, because it is pandigital, but 2⋅77204160205389 = 154408320410778 is not.

Almost surely, 2^{77204160205389} is an apocalyptic number.

It is an amenable number.

77204160205389 is a deficient number, since it is larger than the sum of its proper divisors (56113864314291).

77204160205389 is a wasteful number, since it uses less digits than its factorization.

77204160205389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472311 (or 1472308 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 77204160205389 in words is "seventy-seven trillion, two hundred four billion, one hundred sixty million, two hundred five thousand, three hundred eighty-nine".