68464883177 has 2 divisors, whose sum is σ = 68464883178. Its totient is φ = 68464883176.

The previous prime is 68464883171. The next prime is 68464883237. The reversal of 68464883177 is 77138846486.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57492530176 + 10972353001 = 239776^2 + 104749^2 .

It is a cyclic number.

It is not a de Polignac number, because 68464883177 - 2⁸ = 68464882921 is a prime.

It is a super-2 number, since 2×68464883177² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68464883171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34232441588 + 34232441589.

It is an arithmetic number, because the mean of its divisors is an integer number (34232441589).

Almost surely, 2^68464883177 is an apocalyptic number.

It is an amenable number.

68464883177 is a deficient number, since it is larger than the sum of its proper divisors (1).

68464883177 is an equidigital number, since it uses as much as digits as its factorization.

68464883177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43352064, while the sum is 62.

The spelling of 68464883177 in words is "sixty-eight billion, four hundred sixty-four million, eight hundred eighty-three thousand, one hundred seventy-seven".