23499445973 has 2 divisors, whose sum is σ = 23499445974. Its totient is φ = 23499445972.

The previous prime is 23499445927. The next prime is 23499445997. The reversal of 23499445973 is 37954499432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12122450404 + 11376995569 = 110102^2 + 106663^2 .

It is a cyclic number.

It is not a de Polignac number, because 23499445973 - 2²² = 23495251669 is a prime.

It is a super-2 number, since 2×23499445973² (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 (23499445373) 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, 11749722986 + 11749722987.

It is an arithmetic number, because the mean of its divisors is an integer number (11749722987).

Almost surely, 2^23499445973 is an apocalyptic number.

It is an amenable number.

23499445973 is a deficient number, since it is larger than the sum of its proper divisors (1).

23499445973 is an equidigital number, since it uses as much as digits as its factorization.

23499445973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 59.

The spelling of 23499445973 in words is "twenty-three billion, four hundred ninety-nine million, four hundred forty-five thousand, nine hundred seventy-three".