28603511372 has 6 divisors (see below), whose sum is σ = 50056144908. Its totient is φ = 14301755684.

The previous prime is 28603511371. The next prime is 28603511393. The reversal of 28603511372 is 27311530682.

It is not an unprimeable number, because it can be changed into a prime (28603511371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3575438918 + ... + 3575438925.

It is an arithmetic number, because the mean of its divisors is an integer number (8342690818).

Almost surely, 2^28603511372 is an apocalyptic number.

It is an amenable number.

28603511372 is a deficient number, since it is larger than the sum of its proper divisors (21452633536).

28603511372 is a wasteful number, since it uses less digits than its factorization.

28603511372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150877847 (or 7150877845 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 28603511372 in words is "twenty-eight billion, six hundred three million, five hundred eleven thousand, three hundred seventy-two".