23265136621 has 8 divisors (see below), whose sum is σ = 23393945600. Its totient is φ = 23136503040.

The previous prime is 23265136619. The next prime is 23265136691. The reversal of 23265136621 is 12663156232.

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 23265136621 - 2¹ = 23265136619 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 (23265136691) 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 7 ways as a sum of consecutive naturals, for example, 226765 + ... + 312973.

It is an arithmetic number, because the mean of its divisors is an integer number (2924243200).

Almost surely, 2^23265136621 is an apocalyptic number.

It is an amenable number.

23265136621 is a deficient number, since it is larger than the sum of its proper divisors (128808979).

23265136621 is a wasteful number, since it uses less digits than its factorization.

23265136621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87699.

The product of its digits is 77760, while the sum is 37.

The spelling of 23265136621 in words is "twenty-three billion, two hundred sixty-five million, one hundred thirty-six thousand, six hundred twenty-one".