23617396393 has 4 divisors (see below), whose sum is σ = 23747879428. Its totient is φ = 23486913360.

The previous prime is 23617396379. The next prime is 23617396441. The reversal of 23617396393 is 39369371632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8827917849 + 14789478544 = 93957^2 + 121612^2 .

It is a cyclic number.

It is not a de Polignac number, because 23617396393 - 2²¹ = 23615299241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23617396393.

It is not an unprimeable number, because it can be changed into a prime (23617396373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65241246 + ... + 65241607.

It is an arithmetic number, because the mean of its divisors is an integer number (5936969857).

Almost surely, 2^23617396393 is an apocalyptic number.

It is an amenable number.

23617396393 is a deficient number, since it is larger than the sum of its proper divisors (130483035).

23617396393 is a wasteful number, since it uses less digits than its factorization.

23617396393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130483034.

The product of its digits is 3306744, while the sum is 52.

The spelling of 23617396393 in words is "twenty-three billion, six hundred seventeen million, three hundred ninety-six thousand, three hundred ninety-three".