64492555529197 has 2 divisors, whose sum is σ = 64492555529198. Its totient is φ = 64492555529196.

The previous prime is 64492555529183. The next prime is 64492555529203. The reversal of 64492555529197 is 79192555529446.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49609849817476 + 14882705711721 = 7043426^2 + 3857811^2 .

It is a cyclic number.

It is not a de Polignac number, because 64492555529197 - 2³⁵ = 64458195790829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64492555559197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32246277764598 + 32246277764599.

It is an arithmetic number, because the mean of its divisors is an integer number (32246277764599).

Almost surely, 2^{64492555529197} is an apocalyptic number.

It is an amenable number.

64492555529197 is a deficient number, since it is larger than the sum of its proper divisors (1).

64492555529197 is an equidigital number, since it uses as much as digits as its factorization.

64492555529197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720000, while the sum is 73.

The spelling of 64492555529197 in words is "sixty-four trillion, four hundred ninety-two billion, five hundred fifty-five million, five hundred twenty-nine thousand, one hundred ninety-seven".