22394051712 has 72 divisors (see below), whose sum is σ = 64455835665. Its totient is φ = 7462990848.

The previous prime is 22394051707. The next prime is 22394051723. The reversal of 22394051712 is 21715049322.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22394051712 is a `hidden beast` number, since 2 + 239 + 405 + 1 + 7 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17102362176 + 5291689536 = 130776^2 + 72744^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105816.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5076964 + ... + 5081372.

Almost surely, 2^22394051712 is an apocalyptic number.

It is an amenable number.

22394051712 is an abundant number, since it is smaller than the sum of its proper divisors (42061783953).

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

22394051712 is an frugal number, since it uses more digits than its factorization.

22394051712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838 (or 4414 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 22394051712 in words is "twenty-two billion, three hundred ninety-four million, fifty-one thousand, seven hundred twelve".