648235857360 has 160 divisors (see below), whose sum is σ = 2473269200640. Its totient is φ = 136770637824.

The previous prime is 648235857343. The next prime is 648235857407. The reversal of 648235857360 is 63758532846.

It is a self number, because there is not a number n which added to its sum of digits gives 648235857360.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14818725 + ... + 14862404.

It is an arithmetic number, because the mean of its divisors is an integer number (15457932504).

Almost surely, 2^648235857360 is an apocalyptic number.

648235857360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648235857360 is an abundant number, since it is smaller than the sum of its proper divisors (1825033343280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648235857360 is a wasteful number, since it uses less digits than its factorization.

648235857360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29681165 (or 29681159 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 57.

The spelling of 648235857360 in words is "six hundred forty-eight billion, two hundred thirty-five million, eight hundred fifty-seven thousand, three hundred sixty".