64531177608607 has 2 divisors, whose sum is σ = 64531177608608. Its totient is φ = 64531177608606.

The previous prime is 64531177608563. The next prime is 64531177608613. The reversal of 64531177608607 is 70680677113546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64531177608607 - 2³⁵ = 64496817870239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64531177608907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32265588804303 + 32265588804304.

It is an arithmetic number, because the mean of its divisors is an integer number (32265588804304).

Almost surely, 2^{64531177608607} is an apocalyptic number.

64531177608607 is a deficient number, since it is larger than the sum of its proper divisors (1).

64531177608607 is an equidigital number, since it uses as much as digits as its factorization.

64531177608607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 64531177608607 in words is "sixty-four trillion, five hundred thirty-one billion, one hundred seventy-seven million, six hundred eight thousand, six hundred seven".