22885450447831 has 2 divisors, whose sum is σ = 22885450447832. Its totient is φ = 22885450447830.

The previous prime is 22885450447817. The next prime is 22885450447877. The reversal of 22885450447831 is 13874405458822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22885450447831 - 2⁷ = 22885450447703 is a prime.

It is a super-2 number, since 2×22885450447831² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22885450447831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22885450447631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11442725223915 + 11442725223916.

It is an arithmetic number, because the mean of its divisors is an integer number (11442725223916).

Almost surely, 2^{22885450447831} is an apocalyptic number.

22885450447831 is a deficient number, since it is larger than the sum of its proper divisors (1).

22885450447831 is an equidigital number, since it uses as much as digits as its factorization.

22885450447831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68812800, while the sum is 61.

The spelling of 22885450447831 in words is "twenty-two trillion, eight hundred eighty-five billion, four hundred fifty million, four hundred forty-seven thousand, eight hundred thirty-one".