28236922458 has 8 divisors (see below), whose sum is σ = 56473844928. Its totient is φ = 9412307484.

The previous prime is 28236922379. The next prime is 28236922471. The reversal of 28236922458 is 85422963282.

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

28236922458 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28236922458.

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, 2353076866 + ... + 2353076877.

It is an arithmetic number, because the mean of its divisors is an integer number (7059230616).

Almost surely, 2^28236922458 is an apocalyptic number.

28236922458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28236922458 is a wasteful number, since it uses less digits than its factorization.

28236922458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706153748.

The product of its digits is 3317760, while the sum is 51.

The spelling of 28236922458 in words is "twenty-eight billion, two hundred thirty-six million, nine hundred twenty-two thousand, four hundred fifty-eight".