77986137112607 has 2 divisors, whose sum is σ = 77986137112608. Its totient is φ = 77986137112606.

The previous prime is 77986137112523. The next prime is 77986137112613. The reversal of 77986137112607 is 70621173168977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77986137112607 - 2¹⁸ = 77986136850463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77986137112307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38993068556303 + 38993068556304.

It is an arithmetic number, because the mean of its divisors is an integer number (38993068556304).

Almost surely, 2^{77986137112607} is an apocalyptic number.

77986137112607 is a deficient number, since it is larger than the sum of its proper divisors (1).

77986137112607 is an equidigital number, since it uses as much as digits as its factorization.

77986137112607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37340352, while the sum is 65.

The spelling of 77986137112607 in words is "seventy-seven trillion, nine hundred eighty-six billion, one hundred thirty-seven million, one hundred twelve thousand, six hundred seven".