28999693460 has 24 divisors (see below), whose sum is σ = 60910797696. Its totient is φ = 11597698080.

The previous prime is 28999693421. The next prime is 28999693493. The reversal of 28999693460 is 6439699982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24872 + ... + 242111.

It is an arithmetic number, because the mean of its divisors is an integer number (2537949904).

Almost surely, 2^28999693460 is an apocalyptic number.

28999693460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28999693460 is an abundant number, since it is smaller than the sum of its proper divisors (31911104236).

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

28999693460 is a wasteful number, since it uses less digits than its factorization.

28999693460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272423 (or 272421 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 65.

The spelling of 28999693460 in words is "twenty-eight billion, nine hundred ninety-nine million, six hundred ninety-three thousand, four hundred sixty".