125486256871 has 2 divisors, whose sum is σ = 125486256872. Its totient is φ = 125486256870.

The previous prime is 125486256803. The next prime is 125486256881. The reversal of 125486256871 is 178652684521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125486256871 - 2¹¹ = 125486254823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125486256881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62743128435 + 62743128436.

It is an arithmetic number, because the mean of its divisors is an integer number (62743128436).

Almost surely, 2^125486256871 is an apocalyptic number.

125486256871 is a deficient number, since it is larger than the sum of its proper divisors (1).

125486256871 is an equidigital number, since it uses as much as digits as its factorization.

125486256871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6451200, while the sum is 55.

The spelling of 125486256871 in words is "one hundred twenty-five billion, four hundred eighty-six million, two hundred fifty-six thousand, eight hundred seventy-one".