77054544113 has 2 divisors, whose sum is σ = 77054544114. Its totient is φ = 77054544112.

The previous prime is 77054544109. The next prime is 77054544169. The reversal of 77054544113 is 31144545077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68258355169 + 8796188944 = 261263^2 + 93788^2 .

It is a cyclic number.

It is not a de Polignac number, because 77054544113 - 2² = 77054544109 is a prime.

It is not a weakly prime, because it can be changed into another prime (77054544313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38527272056 + 38527272057.

It is an arithmetic number, because the mean of its divisors is an integer number (38527272057).

Almost surely, 2^77054544113 is an apocalyptic number.

It is an amenable number.

77054544113 is a deficient number, since it is larger than the sum of its proper divisors (1).

77054544113 is an equidigital number, since it uses as much as digits as its factorization.

77054544113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 77054544113 in words is "seventy-seven billion, fifty-four million, five hundred forty-four thousand, one hundred thirteen".