653986208968 has 16 divisors (see below), whose sum is σ = 1226447133660. Its totient is φ = 326933640000.

The previous prime is 653986208963. The next prime is 653986209053. The reversal of 653986208968 is 869802689356.

It can be written as a sum of positive squares in 2 ways, for example, as 485310076164 + 168676132804 = 696642^2 + 410702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 653986208897 and 653986208906.

It is not an unprimeable number, because it can be changed into a prime (653986208963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7386303 + ... + 7474318.

Almost surely, 2^653986208968 is an apocalyptic number.

It is an amenable number.

653986208968 is a deficient number, since it is larger than the sum of its proper divisors (572460924692).

653986208968 is a wasteful number, since it uses less digits than its factorization.

653986208968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14866128 (or 14866124 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 70.

The spelling of 653986208968 in words is "six hundred fifty-three billion, nine hundred eighty-six million, two hundred eight thousand, nine hundred sixty-eight".