125918685911 has 2 divisors, whose sum is σ = 125918685912. Its totient is φ = 125918685910.

The previous prime is 125918685889. The next prime is 125918685917. The reversal of 125918685911 is 119586819521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125918685911 - 2⁶ = 125918685847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125918685917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62959342955 + 62959342956.

It is an arithmetic number, because the mean of its divisors is an integer number (62959342956).

Almost surely, 2^125918685911 is an apocalyptic number.

125918685911 is a deficient number, since it is larger than the sum of its proper divisors (1).

125918685911 is an equidigital number, since it uses as much as digits as its factorization.

125918685911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 56.

The spelling of 125918685911 in words is "one hundred twenty-five billion, nine hundred eighteen million, six hundred eighty-five thousand, nine hundred eleven".