23431216622449 has 4 divisors (see below), whose sum is σ = 24239189609460. Its totient is φ = 22623243635440.

The previous prime is 23431216622441. The next prime is 23431216622479. The reversal of 23431216622449 is 94422661213432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10869813363600 + 12561403258849 = 3296940^2 + 3544207^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431216622449 - 2³ = 23431216622441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23431216622441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403986493462 + ... + 403986493519.

It is an arithmetic number, because the mean of its divisors is an integer number (6059797402365).

Almost surely, 2^{23431216622449} is an apocalyptic number.

23431216622449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23431216622449 is a deficient number, since it is larger than the sum of its proper divisors (807972987011).

23431216622449 is an equidigital number, since it uses as much as digits as its factorization.

23431216622449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807972987010.

The product of its digits is 2985984, while the sum is 49.

The spelling of 23431216622449 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred sixteen million, six hundred twenty-two thousand, four hundred forty-nine".