409568611923 has 16 divisors (see below), whose sum is σ = 606904630560. Its totient is φ = 272984398848.

The previous prime is 409568611883. The next prime is 409568611931. The reversal of 409568611923 is 329116865904.

409568611923 is a `hidden beast` number, since 4 + 0 + 9 + 568 + 61 + 19 + 2 + 3 = 666.

It is not a de Polignac number, because 409568611923 - 2⁹ = 409568611411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409568611923.

It is not an unprimeable number, because it can be changed into a prime (409568611943) 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, 1581390 + ... + 1822067.

It is an arithmetic number, because the mean of its divisors is an integer number (37931539410).

Almost surely, 2^409568611923 is an apocalyptic number.

409568611923 is a deficient number, since it is larger than the sum of its proper divisors (197336018637).

409568611923 is a wasteful number, since it uses less digits than its factorization.

409568611923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407923 (or 3407917 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 409568611923 in words is "four hundred nine billion, five hundred sixty-eight million, six hundred eleven thousand, nine hundred twenty-three".