28136898846 has 24 divisors (see below), whose sum is σ = 69672321264. Its totient is φ = 8039113920.

The previous prime is 28136898827. The next prime is 28136898901. The reversal of 28136898846 is 64889863182.

It is a super-2 number, since 2×28136898846² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111654235 + ... + 111654486.

It is an arithmetic number, because the mean of its divisors is an integer number (2903013386).

Almost surely, 2^28136898846 is an apocalyptic number.

28136898846 is an abundant number, since it is smaller than the sum of its proper divisors (41535422418).

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

28136898846 is a wasteful number, since it uses less digits than its factorization.

28136898846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223308736 (or 223308733 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 63.

The spelling of 28136898846 in words is "twenty-eight billion, one hundred thirty-six million, eight hundred ninety-eight thousand, eight hundred forty-six".