23746323649 has 2 divisors, whose sum is σ = 23746323650. Its totient is φ = 23746323648.

The previous prime is 23746323607. The next prime is 23746323683. The reversal of 23746323649 is 94632364732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23025938049 + 720385600 = 151743^2 + 26840^2 .

It is a cyclic number.

It is not a de Polignac number, because 23746323649 - 2⁷ = 23746323521 is a prime.

It is a super-3 number, since 3×23746323649³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23746323049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11873161824 + 11873161825.

It is an arithmetic number, because the mean of its divisors is an integer number (11873161825).

Almost surely, 2^23746323649 is an apocalyptic number.

It is an amenable number.

23746323649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23746323649 is an equidigital number, since it uses as much as digits as its factorization.

23746323649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 49.

The spelling of 23746323649 in words is "twenty-three billion, seven hundred forty-six million, three hundred twenty-three thousand, six hundred forty-nine".