23723719619 has 2 divisors, whose sum is σ = 23723719620. Its totient is φ = 23723719618.

The previous prime is 23723719609. The next prime is 23723719661. The reversal of 23723719619 is 91691732732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23723719619 - 2²⁴ = 23706942403 is a prime.

It is a super-2 number, since 2×23723719619² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23723719609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11861859809 + 11861859810.

It is an arithmetic number, because the mean of its divisors is an integer number (11861859810).

Almost surely, 2^23723719619 is an apocalyptic number.

23723719619 is a deficient number, since it is larger than the sum of its proper divisors (1).

23723719619 is an equidigital number, since it uses as much as digits as its factorization.

23723719619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The spelling of 23723719619 in words is "twenty-three billion, seven hundred twenty-three million, seven hundred nineteen thousand, six hundred nineteen".