23413640643 has 24 divisors (see below), whose sum is σ = 35902683648. Its totient is φ = 14652517632.

The previous prime is 23413640639. The next prime is 23413640659. The reversal of 23413640643 is 34604631432.

23413640643 is a `hidden beast` number, since 2 + 3 + 4 + 1 + 3 + 6 + 4 + 0 + 643 = 666.

It is not a de Polignac number, because 23413640643 - 2² = 23413640639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23413640598 and 23413640607.

It is not an unprimeable number, because it can be changed into a prime (23413640603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141180 + ... + 258377.

It is an arithmetic number, because the mean of its divisors is an integer number (1495945152).

Almost surely, 2^23413640643 is an apocalyptic number.

23413640643 is a deficient number, since it is larger than the sum of its proper divisors (12489043005).

23413640643 is a wasteful number, since it uses less digits than its factorization.

23413640643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399963 (or 399960 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The spelling of 23413640643 in words is "twenty-three billion, four hundred thirteen million, six hundred forty thousand, six hundred forty-three".