28973259860 has 48 divisors (see below), whose sum is σ = 61899973632. Its totient is φ = 11389603200.

The previous prime is 28973259841. The next prime is 28973259899. The reversal of 28973259860 is 6895237982.

It is a self number, because there is not a number n which added to its sum of digits gives 28973259860.

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, 271370 + ... + 362750.

It is an arithmetic number, because the mean of its divisors is an integer number (1289582784).

Almost surely, 2^28973259860 is an apocalyptic number.

28973259860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28973259860 is an abundant number, since it is smaller than the sum of its proper divisors (32926713772).

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

28973259860 is a wasteful number, since it uses less digits than its factorization.

28973259860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91664 (or 91662 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 28973259860 in words is "twenty-eight billion, nine hundred seventy-three million, two hundred fifty-nine thousand, eight hundred sixty".