28088080658 has 96 divisors (see below), whose sum is σ = 49923288576. Its totient is φ = 11819808000.

The previous prime is 28088080651. The next prime is 28088080681. The reversal of 28088080658 is 85608088082.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (28088080651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16300985 + ... + 16302707.

It is an arithmetic number, because the mean of its divisors is an integer number (520034256).

Almost surely, 2^28088080658 is an apocalyptic number.

28088080658 is a deficient number, since it is larger than the sum of its proper divisors (21835207918).

28088080658 is a wasteful number, since it uses less digits than its factorization.

28088080658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 53.

The spelling of 28088080658 in words is "twenty-eight billion, eighty-eight million, eighty thousand, six hundred fifty-eight".