15226454326423 has 4 divisors (see below), whose sum is σ = 15751504475640. Its totient is φ = 14701404177208.

The previous prime is 15226454326357. The next prime is 15226454326507. The reversal of 15226454326423 is 32462345462251.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15226454326423 is a prime.

It is a super-2 number, since 2×15226454326423² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15226454324423) 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, 262525074565 + ... + 262525074622.

It is an arithmetic number, because the mean of its divisors is an integer number (3937876118910).

Almost surely, 2^{15226454326423} is an apocalyptic number.

15226454326423 is a deficient number, since it is larger than the sum of its proper divisors (525050149217).

15226454326423 is an equidigital number, since it uses as much as digits as its factorization.

15226454326423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525050149216.

The product of its digits is 8294400, while the sum is 49.

Adding to 15226454326423 its reverse (32462345462251), we get a palindrome (47688799788674).

The spelling of 15226454326423 in words is "fifteen trillion, two hundred twenty-six billion, four hundred fifty-four million, three hundred twenty-six thousand, four hundred twenty-three".