23715557312851 has 2 divisors, whose sum is σ = 23715557312852. Its totient is φ = 23715557312850.

The previous prime is 23715557312831. The next prime is 23715557312893. The reversal of 23715557312851 is 15821375551732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23715557312851 - 2¹⁷ = 23715557181779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23715557312792 and 23715557312801.

It is not a weakly prime, because it can be changed into another prime (23715557312831) 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 as a sum of consecutive naturals, namely, 11857778656425 + 11857778656426.

It is an arithmetic number, because the mean of its divisors is an integer number (11857778656426).

Almost surely, 2^{23715557312851} is an apocalyptic number.

23715557312851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23715557312851 is an equidigital number, since it uses as much as digits as its factorization.

23715557312851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820000, while the sum is 55.

The spelling of 23715557312851 in words is "twenty-three trillion, seven hundred fifteen billion, five hundred fifty-seven million, three hundred twelve thousand, eight hundred fifty-one".