6325407657 has 6 divisors (see below), whose sum is σ = 9136699962. Its totient is φ = 4216938432.

The previous prime is 6325407653. The next prime is 6325407689. The reversal of 6325407657 is 7567045236.

6325407657 is a `hidden beast` number, since 6 + 32 + 540 + 76 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3859391376 + 2466016281 = 62124^2 + 49659^2 .

It is not a de Polignac number, because 6325407657 - 2² = 6325407653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6325407653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351411528 + ... + 351411545.

It is an arithmetic number, because the mean of its divisors is an integer number (1522783327).

Almost surely, 2^6325407657 is an apocalyptic number.

It is an amenable number.

6325407657 is a deficient number, since it is larger than the sum of its proper divisors (2811292305).

6325407657 is a wasteful number, since it uses less digits than its factorization.

6325407657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702823079 (or 702823076 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The square root of 6325407657 is about 79532.4314792400. The cubic root of 6325407657 is about 1849.3942654831.

The spelling of 6325407657 in words is "six billion, three hundred twenty-five million, four hundred seven thousand, six hundred fifty-seven".