22701728426 has 24 divisors (see below), whose sum is σ = 36905253420. Its totient is φ = 10473111168.

The previous prime is 22701728419. The next prime is 22701728437. The reversal of 22701728426 is 62482710722.

It can be written as a sum of positive squares in 6 ways, for example, as 1444380025 + 21257348401 = 38005^2 + 145799^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9986426 + ... + 9988698.

Almost surely, 2^22701728426 is an apocalyptic number.

22701728426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22701728426 is a deficient number, since it is larger than the sum of its proper divisors (14203524994).

22701728426 is an frugal number, since it uses more digits than its factorization.

22701728426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 22701728426 in words is "twenty-two billion, seven hundred one million, seven hundred twenty-eight thousand, four hundred twenty-six".