23716485491 has 2 divisors, whose sum is σ = 23716485492. Its totient is φ = 23716485490.

The previous prime is 23716485433. The next prime is 23716485503. The reversal of 23716485491 is 19458461732.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23716485491 - 2¹⁴ = 23716469107 is a prime.

It is a super-2 number, since 2×23716485491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23716487491) 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, 11858242745 + 11858242746.

It is an arithmetic number, because the mean of its divisors is an integer number (11858242746).

Almost surely, 2^23716485491 is an apocalyptic number.

23716485491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23716485491 is an equidigital number, since it uses as much as digits as its factorization.

23716485491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 23716485491 in words is "twenty-three billion, seven hundred sixteen million, four hundred eighty-five thousand, four hundred ninety-one".