22573724507 has 4 divisors (see below), whose sum is σ = 22576675680. Its totient is φ = 22570773336.

The previous prime is 22573724489. The next prime is 22573724617. The reversal of 22573724507 is 70542737522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70542737522 = 2 ⋅35271368761.

It is a cyclic number.

It is not a de Polignac number, because 22573724507 - 2⁶ = 22573724443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22573424507) 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, 1464083 + ... + 1479420.

It is an arithmetic number, because the mean of its divisors is an integer number (5644168920).

Almost surely, 2^22573724507 is an apocalyptic number.

22573724507 is a deficient number, since it is larger than the sum of its proper divisors (2951173).

22573724507 is an equidigital number, since it uses as much as digits as its factorization.

22573724507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951172.

The product of its (nonzero) digits is 823200, while the sum is 44.

The spelling of 22573724507 in words is "twenty-two billion, five hundred seventy-three million, seven hundred twenty-four thousand, five hundred seven".