28992435748 has 12 divisors (see below), whose sum is σ = 50740412380. Its totient is φ = 14495175072.

The previous prime is 28992435733. The next prime is 28992435757. The reversal of 28992435748 is 84753429982.

It can be written as a sum of positive squares in 2 ways, for example, as 52301824 + 28940133924 = 7232^2 + 170118^2 .

It is a super-2 number, since 2×28992435748² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196383 + ... + 310726.

Almost surely, 2^28992435748 is an apocalyptic number.

It is an amenable number.

28992435748 is a deficient number, since it is larger than the sum of its proper divisors (21747976632).

28992435748 is a wasteful number, since it uses less digits than its factorization.

28992435748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521406 (or 521404 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 28992435748 in words is "twenty-eight billion, nine hundred ninety-two million, four hundred thirty-five thousand, seven hundred forty-eight".