648941185074 has 64 divisors (see below), whose sum is σ = 1598088602880. Its totient is φ = 171074868480.

The previous prime is 648941184979. The next prime is 648941185093. The reversal of 648941185074 is 470581149846.

It is a super-2 number, since 2×648941185074² (a number of 24 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 1003344 + ... + 1518084.

It is an arithmetic number, because the mean of its divisors is an integer number (24970134420).

Almost surely, 2^648941185074 is an apocalyptic number.

648941185074 is an abundant number, since it is smaller than the sum of its proper divisors (949147417806).

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

648941185074 is a wasteful number, since it uses less digits than its factorization.

648941185074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517075.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 648941185074 in words is "six hundred forty-eight billion, nine hundred forty-one million, one hundred eighty-five thousand, seventy-four".