28934376580 has 24 divisors (see below), whose sum is σ = 61126043328. Its totient is φ = 11504445408.

The previous prime is 28934376571. The next prime is 28934376607. The reversal of 28934376580 is 8567343982.

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, 4328154 + ... + 4334833.

It is an arithmetic number, because the mean of its divisors is an integer number (2546918472).

Almost surely, 2^28934376580 is an apocalyptic number.

28934376580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28934376580 is an abundant number, since it is smaller than the sum of its proper divisors (32191666748).

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

28934376580 is a wasteful number, since it uses less digits than its factorization.

28934376580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663163 (or 8663161 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 28934376580 in words is "twenty-eight billion, nine hundred thirty-four million, three hundred seventy-six thousand, five hundred eighty".