23444142399 has 48 divisors (see below), whose sum is σ = 34604623872. Its totient is φ = 15292381824.

The previous prime is 23444142331. The next prime is 23444142467. The reversal of 23444142399 is 99324144432.

It is an interprime number because it is at equal distance from previous prime (23444142331) and next prime (23444142467).

It is not a de Polignac number, because 23444142399 - 2⁸ = 23444142143 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23444142299) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46608382 + ... + 46608884.

It is an arithmetic number, because the mean of its divisors is an integer number (720929664).

Almost surely, 2^23444142399 is an apocalyptic number.

23444142399 is a deficient number, since it is larger than the sum of its proper divisors (11160481473).

23444142399 is a wasteful number, since it uses less digits than its factorization.

23444142399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1113 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The spelling of 23444142399 in words is "twenty-three billion, four hundred forty-four million, one hundred forty-two thousand, three hundred ninety-nine".