28091700092 has 12 divisors (see below), whose sum is σ = 49162615656. Its totient is φ = 14045238480.

The previous prime is 28091700079. The next prime is 28091700101. The reversal of 28091700092 is 29000719082.

It is a super-3 number, since 3×28091700092³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (38) 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 3 ways as a sum of consecutive naturals, for example, 40334 + ... + 240437.

It is an arithmetic number, because the mean of its divisors is an integer number (4096884638).

Almost surely, 2^28091700092 is an apocalyptic number.

It is an amenable number.

28091700092 is a deficient number, since it is larger than the sum of its proper divisors (21070915564).

28091700092 is a wasteful number, since it uses less digits than its factorization.

28091700092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305788 (or 305786 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 28091700092 in words is "twenty-eight billion, ninety-one million, seven hundred thousand, ninety-two".