22689744572450 has 18 divisors (see below), whose sum is σ = 42202987553649. Its totient is φ = 9075884356120.

The previous prime is 22689744572431. The next prime is 22689744572479. The reversal of 22689744572450 is 5427544798622.

It can be written as a sum of positive squares in 2 ways, for example, as 22235949681001 + 453794891449 = 4715501^2 + 673643^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3368215.

It is a Duffinian number.

It is a Curzon number.

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, 33345329 + ... + 34018971.

Almost surely, 2^{22689744572450} is an apocalyptic number.

22689744572450 is a deficient number, since it is larger than the sum of its proper divisors (19513242981199).

22689744572450 is an frugal number, since it uses more digits than its factorization.

22689744572450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347298 (or 673650 counting only the distinct ones).

The product of its (nonzero) digits is 270950400, while the sum is 65.

The spelling of 22689744572450 in words is "twenty-two trillion, six hundred eighty-nine billion, seven hundred forty-four million, five hundred seventy-two thousand, four hundred fifty".