22092379781 has 2 divisors, whose sum is σ = 22092379782. Its totient is φ = 22092379780.

The previous prime is 22092379769. The next prime is 22092379811. The reversal of 22092379781 is 18797329022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21621055681 + 471324100 = 147041^2 + 21710^2 .

It is a cyclic number.

It is not a de Polignac number, because 22092379781 - 2³⁴ = 4912510597 is a prime.

It is a super-2 number, since 2×22092379781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22092339781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11046189890 + 11046189891.

It is an arithmetic number, because the mean of its divisors is an integer number (11046189891).

Almost surely, 2^22092379781 is an apocalyptic number.

It is an amenable number.

22092379781 is a deficient number, since it is larger than the sum of its proper divisors (1).

22092379781 is an equidigital number, since it uses as much as digits as its factorization.

22092379781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 22092379781 in words is "twenty-two billion, ninety-two million, three hundred seventy-nine thousand, seven hundred eighty-one".