648698763272 has 32 divisors (see below), whose sum is σ = 1396302297600. Its totient is φ = 276767051904.

The previous prime is 648698763257. The next prime is 648698763319. The reversal of 648698763272 is 272367896846.

It is a super-2 number, since 2×648698763272² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25960397 + ... + 25985372.

It is an arithmetic number, because the mean of its divisors is an integer number (43634446800).

Almost surely, 2^648698763272 is an apocalyptic number.

It is an amenable number.

648698763272 is an abundant number, since it is smaller than the sum of its proper divisors (747603534328).

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

648698763272 is a wasteful number, since it uses less digits than its factorization.

648698763272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51946005 (or 51946001 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 68.

The spelling of 648698763272 in words is "six hundred forty-eight billion, six hundred ninety-eight million, seven hundred sixty-three thousand, two hundred seventy-two".