28135098855 has 48 divisors (see below), whose sum is σ = 51671692800. Its totient is φ = 14113004544.

The previous prime is 28135098847. The next prime is 28135098877. The reversal of 28135098855 is 55889053182.

It is a happy number.

28135098855 is a `hidden beast` number, since 2 + 8 + 1 + 3 + 509 + 88 + 55 = 666.

It is not a de Polignac number, because 28135098855 - 2³ = 28135098847 is a prime.

It is a super-2 number, since 2×28135098855² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1173114 + ... + 1196856.

It is an arithmetic number, because the mean of its divisors is an integer number (1076493600).

Almost surely, 2^28135098855 is an apocalyptic number.

28135098855 is a deficient number, since it is larger than the sum of its proper divisors (23536593945).

28135098855 is a wasteful number, since it uses less digits than its factorization.

28135098855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25320 (or 25317 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 54.

The spelling of 28135098855 in words is "twenty-eight billion, one hundred thirty-five million, ninety-eight thousand, eight hundred fifty-five".