28300071580 has 24 divisors (see below), whose sum is σ = 64832891760. Its totient is φ = 10290935040.

The previous prime is 28300071571. The next prime is 28300071641. The reversal of 28300071580 is 8517000382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64318125 + ... + 64318564.

It is an arithmetic number, because the mean of its divisors is an integer number (2701370490).

Almost surely, 2^28300071580 is an apocalyptic number.

28300071580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28300071580 is an abundant number, since it is smaller than the sum of its proper divisors (36532820180).

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

28300071580 is a wasteful number, since it uses less digits than its factorization.

28300071580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128636709 (or 128636707 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 28300071580 in words is "twenty-eight billion, three hundred million, seventy-one thousand, five hundred eighty".