22423993722 has 32 divisors (see below), whose sum is σ = 53664260160. Its totient is φ = 6899690160.

The previous prime is 22423993693. The next prime is 22423993733. The reversal of 22423993722 is 22739932422.

22423993722 is a `hidden beast` number, since 2 + 242 + 39 + 9 + 372 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15970804 + ... + 15972207.

It is an arithmetic number, because the mean of its divisors is an integer number (1677008130).

Almost surely, 2^22423993722 is an apocalyptic number.

22423993722 is an abundant number, since it is smaller than the sum of its proper divisors (31240266438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22423993722 is a wasteful number, since it uses less digits than its factorization.

22423993722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31943035 (or 31943029 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 22423993722 in words is "twenty-two billion, four hundred twenty-three million, nine hundred ninety-three thousand, seven hundred twenty-two".