23761281919 has 2 divisors, whose sum is σ = 23761281920. Its totient is φ = 23761281918.

The previous prime is 23761281829. The next prime is 23761281937. The reversal of 23761281919 is 91918216732.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23761281919 - 2⁹ = 23761281407 is a prime.

It is a super-2 number, since 2×23761281919² (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 (23761281989) 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, 11880640959 + 11880640960.

It is an arithmetic number, because the mean of its divisors is an integer number (11880640960).

Almost surely, 2^23761281919 is an apocalyptic number.

23761281919 is a deficient number, since it is larger than the sum of its proper divisors (1).

23761281919 is an equidigital number, since it uses as much as digits as its factorization.

23761281919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The spelling of 23761281919 in words is "twenty-three billion, seven hundred sixty-one million, two hundred eighty-one thousand, nine hundred nineteen".