648057237744 has 40 divisors (see below), whose sum is σ = 1913311845760. Its totient is φ = 185159210688.

The previous prime is 648057237727. The next prime is 648057237767. The reversal of 648057237744 is 447732750846.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964370554 + ... + 964371225.

It is an arithmetic number, because the mean of its divisors is an integer number (47832796144).

Almost surely, 2^648057237744 is an apocalyptic number.

It is an amenable number.

648057237744 is an abundant number, since it is smaller than the sum of its proper divisors (1265254608016).

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

648057237744 is a wasteful number, since it uses less digits than its factorization.

648057237744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928741797 (or 1928741791 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 57.

The spelling of 648057237744 in words is "six hundred forty-eight billion, fifty-seven million, two hundred thirty-seven thousand, seven hundred forty-four".