653478564672 has 42 divisors (see below), whose sum is σ = 1873078318098. Its totient is φ = 217826188032.

The previous prime is 653478564653. The next prime is 653478564691. The reversal of 653478564672 is 276465874356.

It is a happy number.

653478564672 is a `hidden beast` number, since 6 + 5 + 3 + 4 + 7 + 8 + 564 + 67 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (653478564653) and next prime (653478564691).

It can be written as a sum of positive squares in only one way, i.e., 452681369856 + 200797194816 = 672816^2 + 448104^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567255123 + ... + 567256274.

Almost surely, 2^653478564672 is an apocalyptic number.

It is an amenable number.

653478564672 is an abundant number, since it is smaller than the sum of its proper divisors (1219599753426).

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

653478564672 is a wasteful number, since it uses less digits than its factorization.

653478564672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134511415 (or 1134511402 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 63.

The spelling of 653478564672 in words is "six hundred fifty-three billion, four hundred seventy-eight million, five hundred sixty-four thousand, six hundred seventy-two".