23152578835621 has 2 divisors, whose sum is σ = 23152578835622. Its totient is φ = 23152578835620.

The previous prime is 23152578835601. The next prime is 23152578835643. The reversal of 23152578835621 is 12653887525132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12239929070721 + 10912649764900 = 3498561^2 + 3303430^2 .

It is a cyclic number.

It is not a de Polignac number, because 23152578835621 - 2¹⁵ = 23152578802853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23152578835601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11576289417810 + 11576289417811.

It is an arithmetic number, because the mean of its divisors is an integer number (11576289417811).

Almost surely, 2^{23152578835621} is an apocalyptic number.

It is an amenable number.

23152578835621 is a deficient number, since it is larger than the sum of its proper divisors (1).

23152578835621 is an equidigital number, since it uses as much as digits as its factorization.

23152578835621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 58.

The spelling of 23152578835621 in words is "twenty-three trillion, one hundred fifty-two billion, five hundred seventy-eight million, eight hundred thirty-five thousand, six hundred twenty-one".