23126901888989 has 4 divisors (see below), whose sum is σ = 23131659536700. Its totient is φ = 23122144241280.

The previous prime is 23126901888977. The next prime is 23126901888997. The reversal of 23126901888989 is 98988810962132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19470526901764 + 3656374987225 = 4412542^2 + 1912165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23126901888989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23126906888989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378816564 + ... + 2378826285.

It is an arithmetic number, because the mean of its divisors is an integer number (5782914884175).

Almost surely, 2^{23126901888989} is an apocalyptic number.

It is an amenable number.

23126901888989 is a deficient number, since it is larger than the sum of its proper divisors (4757647711).

23126901888989 is an equidigital number, since it uses as much as digits as its factorization.

23126901888989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757647710.

The product of its (nonzero) digits is 214990848, while the sum is 74.

The spelling of 23126901888989 in words is "twenty-three trillion, one hundred twenty-six billion, nine hundred one million, eight hundred eighty-eight thousand, nine hundred eighty-nine".