125434274817 has 16 divisors (see below), whose sum is σ = 170081831808. Its totient is φ = 82211458560.

The previous prime is 125434274789. The next prime is 125434274821. The reversal of 125434274817 is 718472434521.

It is not a de Polignac number, because 125434274817 - 2⁸ = 125434274561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125434274617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758938 + ... + 909315.

It is an arithmetic number, because the mean of its divisors is an integer number (10630114488).

Almost surely, 2^125434274817 is an apocalyptic number.

It is an amenable number.

125434274817 is a deficient number, since it is larger than the sum of its proper divisors (44647556991).

125434274817 is a wasteful number, since it uses less digits than its factorization.

125434274817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668680.

The product of its digits is 1505280, while the sum is 48.

The spelling of 125434274817 in words is "one hundred twenty-five billion, four hundred thirty-four million, two hundred seventy-four thousand, eight hundred seventeen".