648011739144 has 128 divisors (see below), whose sum is σ = 2054010700800. Its totient is φ = 165461917440.

The previous prime is 648011739131. The next prime is 648011739161. The reversal of 648011739144 is 441937110846.

It is a junction number, because it is equal to n+sod(n) for n = 648011739093 and 648011739102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2862627 + ... + 3080690.

It is an arithmetic number, because the mean of its divisors is an integer number (16046958600).

Almost surely, 2^648011739144 is an apocalyptic number.

It is an amenable number.

648011739144 is an abundant number, since it is smaller than the sum of its proper divisors (1405998961656).

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

648011739144 is a wasteful number, since it uses less digits than its factorization.

648011739144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943403 (or 5943399 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 648011739144 in words is "six hundred forty-eight billion, eleven million, seven hundred thirty-nine thousand, one hundred forty-four".