28751157633 has 48 divisors (see below), whose sum is σ = 42998997888. Its totient is φ = 17070662400.

The previous prime is 28751157629. The next prime is 28751157649. The reversal of 28751157633 is 33675115782.

It is not a de Polignac number, because 28751157633 - 2² = 28751157629 is a prime.

It is a super-2 number, since 2×28751157633² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28751157623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5821141 + ... + 5826077.

It is an arithmetic number, because the mean of its divisors is an integer number (895812456).

Almost surely, 2^28751157633 is an apocalyptic number.

It is an amenable number.

28751157633 is a deficient number, since it is larger than the sum of its proper divisors (14247840255).

28751157633 is a wasteful number, since it uses less digits than its factorization.

28751157633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5275 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 28751157633 in words is "twenty-eight billion, seven hundred fifty-one million, one hundred fifty-seven thousand, six hundred thirty-three".