23426346647 has 72 divisors (see below), whose sum is σ = 29054602800. Its totient is φ = 18723870720.

The previous prime is 23426346641. The next prime is 23426346649. The reversal of 23426346647 is 74664362432.

It is not a de Polignac number, because 23426346647 - 2¹⁰ = 23426345623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23426346641) 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 71 ways as a sum of consecutive naturals, for example, 157223729 + ... + 157223877.

It is an arithmetic number, because the mean of its divisors is an integer number (403536150).

Almost surely, 2^23426346647 is an apocalyptic number.

23426346647 is a deficient number, since it is larger than the sum of its proper divisors (5628256153).

23426346647 is a wasteful number, since it uses less digits than its factorization.

23426346647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 333 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 47.

It can be divided in two parts, 23426 and 346647, that added together give a palindrome (370073).

The spelling of 23426346647 in words is "twenty-three billion, four hundred twenty-six million, three hundred forty-six thousand, six hundred forty-seven".