23426564641 has 4 divisors (see below), whose sum is σ = 23428454400. Its totient is φ = 23424674884.

The previous prime is 23426564639. The next prime is 23426564659. The reversal of 23426564641 is 14646562432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23426564641 - 2¹ = 23426564639 is a prime.

It is a super-3 number, since 3×23426564641³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23426564611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926161 + ... + 951118.

It is an arithmetic number, because the mean of its divisors is an integer number (5857113600).

Almost surely, 2^23426564641 is an apocalyptic number.

It is an amenable number.

23426564641 is a deficient number, since it is larger than the sum of its proper divisors (1889759).

23426564641 is a wasteful number, since it uses less digits than its factorization.

23426564641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889758.

The product of its digits is 829440, while the sum is 43.

The spelling of 23426564641 in words is "twenty-three billion, four hundred twenty-six million, five hundred sixty-four thousand, six hundred forty-one".