126858534868 has 12 divisors (see below), whose sum is σ = 239079546580. Its totient is φ = 58550092992.

The previous prime is 126858534853. The next prime is 126858534899. The reversal of 126858534868 is 868435858621.

It can be written as a sum of positive squares in 2 ways, for example, as 40674015684 + 86184519184 = 201678^2 + 293572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219793553 + ... + 1219793656.

Almost surely, 2^126858534868 is an apocalyptic number.

It is an amenable number.

126858534868 is a deficient number, since it is larger than the sum of its proper divisors (112221011712).

126858534868 is a wasteful number, since it uses less digits than its factorization.

126858534868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439587226 (or 2439587224 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 64.

The spelling of 126858534868 in words is "one hundred twenty-six billion, eight hundred fifty-eight million, five hundred thirty-four thousand, eight hundred sixty-eight".