28572875432 has 8 divisors (see below), whose sum is σ = 53574141450. Its totient is φ = 14286437712.

The previous prime is 28572875423. The next prime is 28572875437. The reversal of 28572875432 is 23457827582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27911048356 + 661827076 = 167066^2 + 25726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28572875437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785804707 + ... + 1785804722.

Almost surely, 2^28572875432 is an apocalyptic number.

It is an amenable number.

28572875432 is a deficient number, since it is larger than the sum of its proper divisors (25001266018).

28572875432 is a wasteful number, since it uses less digits than its factorization.

28572875432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571609435 (or 3571609431 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 53.

The spelling of 28572875432 in words is "twenty-eight billion, five hundred seventy-two million, eight hundred seventy-five thousand, four hundred thirty-two".