648575361552 has 40 divisors (see below), whose sum is σ = 1774044373536. Its totient is φ = 203474622976.

The previous prime is 648575361547. The next prime is 648575361563. The reversal of 648575361552 is 255163575846.

It is a super-2 number, since 2×648575361552² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 648575361492 and 648575361501.

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 7 ways as a sum of consecutive naturals, for example, 397410558 + ... + 397412189.

Almost surely, 2^648575361552 is an apocalyptic number.

It is an amenable number.

648575361552 is an abundant number, since it is smaller than the sum of its proper divisors (1125469011984).

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

648575361552 is a wasteful number, since it uses less digits than its factorization.

648575361552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794822775 (or 794822769 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 57.

The spelling of 648575361552 in words is "six hundred forty-eight billion, five hundred seventy-five million, three hundred sixty-one thousand, five hundred fifty-two".