22491870563 has 2 divisors, whose sum is σ = 22491870564. Its totient is φ = 22491870562.

The previous prime is 22491870523. The next prime is 22491870571. The reversal of 22491870563 is 36507819422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22491870563 - 2¹⁶ = 22491805027 is a prime.

It is not a weakly prime, because it can be changed into another prime (22491870503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11245935281 + 11245935282.

It is an arithmetic number, because the mean of its divisors is an integer number (11245935282).

It is a 1-persistent number, because it is pandigital, but 2⋅22491870563 = 44983741126 is not.

Almost surely, 2^22491870563 is an apocalyptic number.

22491870563 is a deficient number, since it is larger than the sum of its proper divisors (1).

22491870563 is an equidigital number, since it uses as much as digits as its factorization.

22491870563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 22491870563 in words is "twenty-two billion, four hundred ninety-one million, eight hundred seventy thousand, five hundred sixty-three".