28973713740 has 24 divisors (see below), whose sum is σ = 81126398640. Its totient is φ = 7726323648.

The previous prime is 28973713729. The next prime is 28973713759. The reversal of 28973713740 is 4731737982.

It is a happy 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, 241447555 + ... + 241447674.

It is an arithmetic number, because the mean of its divisors is an integer number (3380266610).

Almost surely, 2^28973713740 is an apocalyptic number.

28973713740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28973713740 is an abundant number, since it is smaller than the sum of its proper divisors (52152684900).

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

28973713740 is a wasteful number, since it uses less digits than its factorization.

28973713740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482895241 (or 482895239 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 51.

The spelling of 28973713740 in words is "twenty-eight billion, nine hundred seventy-three million, seven hundred thirteen thousand, seven hundred forty".