22881453997 has 4 divisors (see below), whose sum is σ = 22882085856. Its totient is φ = 22880822140.

The previous prime is 22881453971. The next prime is 22881454069. The reversal of 22881453997 is 79935418822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22881453997 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22881453797) 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, 258079 + ... + 335212.

It is an arithmetic number, because the mean of its divisors is an integer number (5720521464).

Almost surely, 2^22881453997 is an apocalyptic number.

It is an amenable number.

22881453997 is a deficient number, since it is larger than the sum of its proper divisors (631859).

22881453997 is an equidigital number, since it uses as much as digits as its factorization.

22881453997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631858.

The product of its digits is 8709120, while the sum is 58.

The spelling of 22881453997 in words is "twenty-two billion, eight hundred eighty-one million, four hundred fifty-three thousand, nine hundred ninety-seven".