653757928868 has 24 divisors (see below), whose sum is σ = 1248225837600. Its totient is φ = 297128761920.

The previous prime is 653757928867. The next prime is 653757928907. The reversal of 653757928868 is 868829757356.

It is a super-2 number, since 2×653757928868² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 653757928795 and 653757928804.

It is not an unprimeable number, because it can be changed into a prime (653757928867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456593 + ... + 1231256.

It is an arithmetic number, because the mean of its divisors is an integer number (52009409900).

Almost surely, 2^653757928868 is an apocalyptic number.

It is an amenable number.

653757928868 is a deficient number, since it is larger than the sum of its proper divisors (594467908732).

653757928868 is a wasteful number, since it uses less digits than its factorization.

653757928868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696667 (or 1696665 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 74.

The spelling of 653757928868 in words is "six hundred fifty-three billion, seven hundred fifty-seven million, nine hundred twenty-eight thousand, eight hundred sixty-eight".