23453236637 has 2 divisors, whose sum is σ = 23453236638. Its totient is φ = 23453236636.

The previous prime is 23453236607. The next prime is 23453236649. The reversal of 23453236637 is 73663235432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12331214116 + 11122022521 = 111046^2 + 105461^2 .

It is a cyclic number.

It is not a de Polignac number, because 23453236637 - 2¹⁰ = 23453235613 is a prime.

It is a super-2 number, since 2×23453236637² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23453236607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11726618318 + 11726618319.

It is an arithmetic number, because the mean of its divisors is an integer number (11726618319).

Almost surely, 2^23453236637 is an apocalyptic number.

It is an amenable number.

23453236637 is a deficient number, since it is larger than the sum of its proper divisors (1).

23453236637 is an equidigital number, since it uses as much as digits as its factorization.

23453236637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 44.

The spelling of 23453236637 in words is "twenty-three billion, four hundred fifty-three million, two hundred thirty-six thousand, six hundred thirty-seven".