22409297523 has 12 divisors (see below), whose sum is σ = 32390147608. Its totient is φ = 14929764480.

The previous prime is 22409297497. The next prime is 22409297531. The reversal of 22409297523 is 32579290422.

It is not a de Polignac number, because 22409297523 - 2²² = 22405103219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22409297593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799390 + ... + 826947.

Almost surely, 2^22409297523 is an apocalyptic number.

22409297523 is a deficient number, since it is larger than the sum of its proper divisors (9980850085).

22409297523 is a wasteful number, since it uses less digits than its factorization.

22409297523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627874 (or 1627871 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 22409297523 in words is "twenty-two billion, four hundred nine million, two hundred ninety-seven thousand, five hundred twenty-three".