23535664489 has 8 divisors (see below), whose sum is σ = 23624065800. Its totient is φ = 23447424000.

The previous prime is 23535664469. The next prime is 23535664561. The reversal of 23535664489 is 98446653532.

It can be written as a sum of positive squares in 4 ways, for example, as 11303304489 + 12232360000 = 106317^2 + 110600^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23535664489 - 2¹³ = 23535656297 is a prime.

It is a super-2 number, since 2×23535664489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23535664469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257139 + ... + 336439.

It is an arithmetic number, because the mean of its divisors is an integer number (2953008225).

Almost surely, 2^23535664489 is an apocalyptic number.

It is an amenable number.

23535664489 is a deficient number, since it is larger than the sum of its proper divisors (88401311).

23535664489 is an equidigital number, since it uses as much as digits as its factorization.

23535664489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80411.

The product of its digits is 18662400, while the sum is 55.

The spelling of 23535664489 in words is "twenty-three billion, five hundred thirty-five million, six hundred sixty-four thousand, four hundred eighty-nine".