490616633257 has 2 divisors, whose sum is σ = 490616633258. Its totient is φ = 490616633256.

The previous prime is 490616633219. The next prime is 490616633323. The reversal of 490616633257 is 752336616094.

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., 481752599056 + 8864034201 = 694084^2 + 94149^2 .

It is a cyclic number.

It is not a de Polignac number, because 490616633257 - 2³⁵ = 456256894889 is a prime.

It is not a weakly prime, because it can be changed into another prime (490616613257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245308316628 + 245308316629.

It is an arithmetic number, because the mean of its divisors is an integer number (245308316629).

Almost surely, 2^490616633257 is an apocalyptic number.

It is an amenable number.

490616633257 is a deficient number, since it is larger than the sum of its proper divisors (1).

490616633257 is an equidigital number, since it uses as much as digits as its factorization.

490616633257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 490616633257 in words is "four hundred ninety billion, six hundred sixteen million, six hundred thirty-three thousand, two hundred fifty-seven".