677061065231 has 2 divisors, whose sum is σ = 677061065232. Its totient is φ = 677061065230.

The previous prime is 677061065209. The next prime is 677061065251. The reversal of 677061065231 is 132560160776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677061065231 - 2⁶ = 677061065167 is a prime.

It is a super-2 number, since 2×677061065231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677061065251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338530532615 + 338530532616.

It is an arithmetic number, because the mean of its divisors is an integer number (338530532616).

Almost surely, 2^677061065231 is an apocalyptic number.

677061065231 is a deficient number, since it is larger than the sum of its proper divisors (1).

677061065231 is an equidigital number, since it uses as much as digits as its factorization.

677061065231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 677061065231 in words is "six hundred seventy-seven billion, sixty-one million, sixty-five thousand, two hundred thirty-one".