23253440439 has 16 divisors (see below), whose sum is σ = 31503233664. Its totient is φ = 15254460000.

The previous prime is 23253440437. The next prime is 23253440447. The reversal of 23253440439 is 93404435232.

It is not a de Polignac number, because 23253440439 - 2¹ = 23253440437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23253440397 and 23253440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23253440437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123532 + ... + 248529.

It is an arithmetic number, because the mean of its divisors is an integer number (1968952104).

Almost surely, 2^23253440439 is an apocalyptic number.

23253440439 is a deficient number, since it is larger than the sum of its proper divisors (8249793225).

23253440439 is a wasteful number, since it uses less digits than its factorization.

23253440439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372398.

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 23253440439 in words is "twenty-three billion, two hundred fifty-three million, four hundred forty thousand, four hundred thirty-nine".