28500541858 has 8 divisors (see below), whose sum is σ = 44129871360. Its totient is φ = 13790584740.

The previous prime is 28500541841. The next prime is 28500541877. The reversal of 28500541858 is 85814500582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28500541858² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229843018 + ... + 229843141.

It is an arithmetic number, because the mean of its divisors is an integer number (5516233920).

Almost surely, 2^28500541858 is an apocalyptic number.

28500541858 is a deficient number, since it is larger than the sum of its proper divisors (15629329502).

28500541858 is a wasteful number, since it uses less digits than its factorization.

28500541858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459686192.

The product of its (nonzero) digits is 512000, while the sum is 46.

The spelling of 28500541858 in words is "twenty-eight billion, five hundred million, five hundred forty-one thousand, eight hundred fifty-eight".