23361857357 has 2 divisors, whose sum is σ = 23361857358. Its totient is φ = 23361857356.

The previous prime is 23361857213. The next prime is 23361857369. The reversal of 23361857357 is 75375816332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22056408196 + 1305449161 = 148514^2 + 36131^2 .

It is a cyclic number.

It is not a de Polignac number, because 23361857357 - 2²⁶ = 23294748493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23361857377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11680928678 + 11680928679.

It is an arithmetic number, because the mean of its divisors is an integer number (11680928679).

Almost surely, 2^23361857357 is an apocalyptic number.

It is an amenable number.

23361857357 is a deficient number, since it is larger than the sum of its proper divisors (1).

23361857357 is an equidigital number, since it uses as much as digits as its factorization.

23361857357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 50.

The spelling of 23361857357 in words is "twenty-three billion, three hundred sixty-one million, eight hundred fifty-seven thousand, three hundred fifty-seven".