23581490369 has 2 divisors, whose sum is σ = 23581490370. Its totient is φ = 23581490368.

The previous prime is 23581490291. The next prime is 23581490407. The reversal of 23581490369 is 96309418532.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23494758400 + 86731969 = 153280^2 + 9313^2 .

It is a cyclic number.

It is not a de Polignac number, because 23581490369 - 2¹⁶ = 23581424833 is a prime.

It is a super-2 number, since 2×23581490369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23581460369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11790745184 + 11790745185.

It is an arithmetic number, because the mean of its divisors is an integer number (11790745185).

Almost surely, 2^23581490369 is an apocalyptic number.

It is an amenable number.

23581490369 is a deficient number, since it is larger than the sum of its proper divisors (1).

23581490369 is an equidigital number, since it uses as much as digits as its factorization.

23581490369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 23581490369 in words is "twenty-three billion, five hundred eighty-one million, four hundred ninety thousand, three hundred sixty-nine".