23404448643 has 16 divisors (see below), whose sum is σ = 31754489856. Its totient is φ = 15329904480.

The previous prime is 23404448621. The next prime is 23404448659. The reversal of 23404448643 is 34684440432.

It is not a de Polignac number, because 23404448643 - 2⁵ = 23404448611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23404448595 and 23404448604.

It is not an unprimeable number, because it can be changed into a prime (23404448143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75028 + ... + 228993.

It is an arithmetic number, because the mean of its divisors is an integer number (1984655616).

Almost surely, 2^23404448643 is an apocalyptic number.

23404448643 is a deficient number, since it is larger than the sum of its proper divisors (8350041213).

23404448643 is a wasteful number, since it uses less digits than its factorization.

23404448643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304474.

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 23404448643 in words is "twenty-three billion, four hundred four million, four hundred forty-eight thousand, six hundred forty-three".