77036054231 has 2 divisors, whose sum is σ = 77036054232. Its totient is φ = 77036054230.

The previous prime is 77036054177. The next prime is 77036054237. The reversal of 77036054231 is 13245063077.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77036054231 is a prime.

It is a super-2 number, since 2×77036054231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77036054237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38518027115 + 38518027116.

It is an arithmetic number, because the mean of its divisors is an integer number (38518027116).

Almost surely, 2^77036054231 is an apocalyptic number.

77036054231 is a deficient number, since it is larger than the sum of its proper divisors (1).

77036054231 is an equidigital number, since it uses as much as digits as its factorization.

77036054231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 77036054231 in words is "seventy-seven billion, thirty-six million, fifty-four thousand, two hundred thirty-one".