68675862677 has 2 divisors, whose sum is σ = 68675862678. Its totient is φ = 68675862676.

The previous prime is 68675862583. The next prime is 68675862701. The reversal of 68675862677 is 77626857686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52465734916 + 16210127761 = 229054^2 + 127319^2 .

It is a cyclic number.

It is not a de Polignac number, because 68675862677 - 2¹⁸ = 68675600533 is a prime.

It is a super-2 number, since 2×68675862677² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68675862077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34337931338 + 34337931339.

It is an arithmetic number, because the mean of its divisors is an integer number (34337931339).

Almost surely, 2^68675862677 is an apocalyptic number.

It is an amenable number.

68675862677 is a deficient number, since it is larger than the sum of its proper divisors (1).

68675862677 is an equidigital number, since it uses as much as digits as its factorization.

68675862677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 284497920, while the sum is 68.

The spelling of 68675862677 in words is "sixty-eight billion, six hundred seventy-five million, eight hundred sixty-two thousand, six hundred seventy-seven".