22773994481 has 4 divisors (see below), whose sum is σ = 26027422272. Its totient is φ = 19520566692.

The previous prime is 22773994423. The next prime is 22773994489. The reversal of 22773994481 is 18449937722.

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 not a de Polignac number, because 22773994481 - 2³⁰ = 21700252657 is a prime.

It is a super-2 number, since 2×22773994481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22773994489) 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, 1626713885 + ... + 1626713898.

It is an arithmetic number, because the mean of its divisors is an integer number (6506855568).

Almost surely, 2^22773994481 is an apocalyptic number.

It is an amenable number.

22773994481 is a deficient number, since it is larger than the sum of its proper divisors (3253427791).

22773994481 is an equidigital number, since it uses as much as digits as its factorization.

22773994481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253427790.

The product of its digits is 6096384, while the sum is 56.

The spelling of 22773994481 in words is "twenty-two billion, seven hundred seventy-three million, nine hundred ninety-four thousand, four hundred eighty-one".