868849519123 has 2 divisors, whose sum is σ = 868849519124. Its totient is φ = 868849519122.

The previous prime is 868849519117. The next prime is 868849519177. The reversal of 868849519123 is 321915948868.

It is a happy number.

868849519123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868849519123 - 2⁵ = 868849519091 is a prime.

It is not a weakly prime, because it can be changed into another prime (868849514123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434424759561 + 434424759562.

It is an arithmetic number, because the mean of its divisors is an integer number (434424759562).

Almost surely, 2^868849519123 is an apocalyptic number.

868849519123 is a deficient number, since it is larger than the sum of its proper divisors (1).

868849519123 is an equidigital number, since it uses as much as digits as its factorization.

868849519123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29859840, while the sum is 64.

The spelling of 868849519123 in words is "eight hundred sixty-eight billion, eight hundred forty-nine million, five hundred nineteen thousand, one hundred twenty-three".