123945126886 has 16 divisors (see below), whose sum is σ = 215960597280. Its totient is φ = 52248530880.

The previous prime is 123945126859. The next prime is 123945126901. The reversal of 123945126886 is 688621549321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72566551 + ... + 72568258.

It is an arithmetic number, because the mean of its divisors is an integer number (13497537330).

Almost surely, 2^123945126886 is an apocalyptic number.

123945126886 is a deficient number, since it is larger than the sum of its proper divisors (92015470394).

123945126886 is a wasteful number, since it uses less digits than its factorization.

123945126886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145134879.

The product of its digits is 4976640, while the sum is 55.

The spelling of 123945126886 in words is "one hundred twenty-three billion, nine hundred forty-five million, one hundred twenty-six thousand, eight hundred eighty-six".