23440374019 has 2 divisors, whose sum is σ = 23440374020. Its totient is φ = 23440374018.

The previous prime is 23440373989. The next prime is 23440374071. The reversal of 23440374019 is 91047304432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23440374019 - 2¹⁹ = 23439849731 is a prime.

It is a super-2 number, since 2×23440374019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23440314019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720187009 + 11720187010.

It is an arithmetic number, because the mean of its divisors is an integer number (11720187010).

Almost surely, 2^23440374019 is an apocalyptic number.

23440374019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440374019 is an equidigital number, since it uses as much as digits as its factorization.

23440374019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 23440374019 in words is "twenty-three billion, four hundred forty million, three hundred seventy-four thousand, nineteen".