28183356451 has 4 divisors (see below), whose sum is σ = 28187719600. Its totient is φ = 28178993304.

The previous prime is 28183356419. The next prime is 28183356463. The reversal of 28183356451 is 15465338182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28183356451 - 2⁵ = 28183356419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28183356251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171871 + ... + 2184808.

It is an arithmetic number, because the mean of its divisors is an integer number (7046929900).

Almost surely, 2^28183356451 is an apocalyptic number.

28183356451 is a deficient number, since it is larger than the sum of its proper divisors (4363149).

28183356451 is an equidigital number, since it uses as much as digits as its factorization.

28183356451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363148.

The product of its digits is 691200, while the sum is 46.

The spelling of 28183356451 in words is "twenty-eight billion, one hundred eighty-three million, three hundred fifty-six thousand, four hundred fifty-one".