23153939393317 has 8 divisors (see below), whose sum is σ = 24527538296856. Its totient is φ = 21781629652992.

The previous prime is 23153939393267. The next prime is 23153939393339. The reversal of 23153939393317 is 71339393935132.

It can be written as a sum of positive squares in 4 ways, for example, as 3310558416036 + 19843380977281 = 1819494^2 + 4454591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23153939393317 - 2¹⁵ = 23153939360549 is a prime.

It is a super-2 number, since 2×23153939393317² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23153939393617) 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, 322253818 + ... + 322325659.

It is an arithmetic number, because the mean of its divisors is an integer number (3065942287107).

Almost surely, 2^{23153939393317} is an apocalyptic number.

It is an amenable number.

23153939393317 is a deficient number, since it is larger than the sum of its proper divisors (1373598903539).

23153939393317 is a wasteful number, since it uses less digits than its factorization.

23153939393317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644581607.

The product of its digits is 37200870, while the sum is 61.

The spelling of 23153939393317 in words is "twenty-three trillion, one hundred fifty-three billion, nine hundred thirty-nine million, three hundred ninety-three thousand, three hundred seventeen".