28433275432 has 8 divisors (see below), whose sum is σ = 53312391450. Its totient is φ = 14216637712.

The previous prime is 28433275399. The next prime is 28433275433. The reversal of 28433275432 is 23457233482.

It can be written as a sum of positive squares in only one way, i.e., 18470440836 + 9962834596 = 135906^2 + 99814^2 .

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 (28433275433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777079707 + ... + 1777079722.

Almost surely, 2^28433275432 is an apocalyptic number.

It is an amenable number.

28433275432 is a deficient number, since it is larger than the sum of its proper divisors (24879116018).

28433275432 is a wasteful number, since it uses less digits than its factorization.

28433275432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554159435 (or 3554159431 counting only the distinct ones).

The product of its digits is 967680, while the sum is 43.

The spelling of 28433275432 in words is "twenty-eight billion, four hundred thirty-three million, two hundred seventy-five thousand, four hundred thirty-two".