2474638657 has 2 divisors, whose sum is σ = 2474638658. Its totient is φ = 2474638656.

The previous prime is 2474638633. The next prime is 2474638687. The reversal of 2474638657 is 7568364742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2344883776 + 129754881 = 48424^2 + 11391^2 .

It is a cyclic number.

It is not a de Polignac number, because 2474638657 - 2¹¹ = 2474636609 is a prime.

It is a super-2 number, since 2×2474638657² = 12247672965437527298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2474638687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1237319328 + 1237319329.

It is an arithmetic number, because the mean of its divisors is an integer number (1237319329).

Almost surely, 2^2474638657 is an apocalyptic number.

It is an amenable number.

2474638657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2474638657 is an equidigital number, since it uses as much as digits as its factorization.

2474638657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 52.

The square root of 2474638657 is about 49745.7400889765. The cubic root of 2474638657 is about 1352.6037826478.

The spelling of 2474638657 in words is "two billion, four hundred seventy-four million, six hundred thirty-eight thousand, six hundred fifty-seven".