22639009946 has 32 divisors (see below), whose sum is σ = 39023107968. Its totient is φ = 9649160640.

The previous prime is 22639009937. The next prime is 22639009969. The reversal of 22639009946 is 64990093622.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22639009894 and 22639009903.

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, 6062696 + ... + 6066428.

It is an arithmetic number, because the mean of its divisors is an integer number (1219472124).

Almost surely, 2^22639009946 is an apocalyptic number.

22639009946 is a deficient number, since it is larger than the sum of its proper divisors (16384098022).

22639009946 is a wasteful number, since it uses less digits than its factorization.

22639009946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 22639009946 in words is "twenty-two billion, six hundred thirty-nine million, nine thousand, nine hundred forty-six".