22772928865831 has 2 divisors, whose sum is σ = 22772928865832. Its totient is φ = 22772928865830.

The previous prime is 22772928865787. The next prime is 22772928865853. The reversal of 22772928865831 is 13856882927722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22772928865831 - 2¹³ = 22772928857639 is a prime.

It is a super-2 number, since 2×22772928865831² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22772928845831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11386464432915 + 11386464432916.

It is an arithmetic number, because the mean of its divisors is an integer number (11386464432916).

Almost surely, 2^{22772928865831} is an apocalyptic number.

22772928865831 is a deficient number, since it is larger than the sum of its proper divisors (1).

22772928865831 is an equidigital number, since it uses as much as digits as its factorization.

22772928865831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 325140480, while the sum is 70.

The spelling of 22772928865831 in words is "twenty-two trillion, seven hundred seventy-two billion, nine hundred twenty-eight million, eight hundred sixty-five thousand, eight hundred thirty-one".