648360856250 has 24 divisors (see below), whose sum is σ = 1215598813884. Its totient is φ = 259344340000.

The previous prime is 648360856219. The next prime is 648360856277. The reversal of 648360856250 is 52658063846.

It can be written as a sum of positive squares in 6 ways, for example, as 145633061161 + 502727795089 = 381619^2 + 709033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 648360856192 and 648360856201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51862619 + ... + 51875118.

Almost surely, 2^648360856250 is an apocalyptic number.

648360856250 is a deficient number, since it is larger than the sum of its proper divisors (567237957634).

648360856250 is an equidigital number, since it uses as much as digits as its factorization.

648360856250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103737764 (or 103737744 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 648360856250 in words is "six hundred forty-eight billion, three hundred sixty million, eight hundred fifty-six thousand, two hundred fifty".