23490217593 has 8 divisors (see below), whose sum is σ = 34800322400. Its totient is φ = 15660145044.

The previous prime is 23490217549. The next prime is 23490217603. The reversal of 23490217593 is 39571209432.

23490217593 is a `hidden beast` number, since 2 + 3 + 49 + 0 + 2 + 17 + 593 = 666.

It is not a de Polignac number, because 23490217593 - 2⁹ = 23490217081 is a prime.

It is a super-3 number, since 3×23490217593³ (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 (23490217523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435004003 + ... + 435004056.

It is an arithmetic number, because the mean of its divisors is an integer number (4350040300).

Almost surely, 2^23490217593 is an apocalyptic number.

It is an amenable number.

23490217593 is a deficient number, since it is larger than the sum of its proper divisors (11310104807).

23490217593 is an equidigital number, since it uses as much as digits as its factorization.

23490217593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870008068 (or 870008062 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 23490217593 in words is "twenty-three billion, four hundred ninety million, two hundred seventeen thousand, five hundred ninety-three".