32757451668 has 18 divisors (see below), whose sum is σ = 82803558474. Its totient is φ = 10919150544.

The previous prime is 32757451631. The next prime is 32757451669. The reversal of 32757451668 is 86615475723.

32757451668 is a `hidden beast` number, since 3 + 2 + 7 + 574 + 5 + 1 + 6 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 32169292164 + 588159504 = 179358^2 + 24252^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32757451669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454964571 + ... + 454964642.

It is an arithmetic number, because the mean of its divisors is an integer number (4600197693).

Almost surely, 2^32757451668 is an apocalyptic number.

It is an amenable number.

32757451668 is an abundant number, since it is smaller than the sum of its proper divisors (50046106806).

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

32757451668 is a wasteful number, since it uses less digits than its factorization.

32757451668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909929223 (or 909929218 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 32757451668 in words is "thirty-two billion, seven hundred fifty-seven million, four hundred fifty-one thousand, six hundred sixty-eight".