28923957744 has 80 divisors (see below), whose sum is σ = 83501155584. Its totient is φ = 8551052800.

The previous prime is 28923957731. The next prime is 28923957757. The reversal of 28923957744 is 44775932982.

It is an interprime number because it is at equal distance from previous prime (28923957731) and next prime (28923957757).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646404 + ... + 689699.

Almost surely, 2^28923957744 is an apocalyptic number.

28923957744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28923957744 is an abundant number, since it is smaller than the sum of its proper divisors (54577197840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28923957744 is a wasteful number, since it uses less digits than its factorization.

28923957744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336166 (or 1336160 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 28923957744 in words is "twenty-eight billion, nine hundred twenty-three million, nine hundred fifty-seven thousand, seven hundred forty-four".