126857936942 has 24 divisors (see below), whose sum is σ = 211508463600. Its totient is φ = 57014793440.

The previous prime is 126857936923. The next prime is 126857936977. The reversal of 126857936942 is 249639758621.

It is a super-2 number, since 2×126857936942² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2923442 + ... + 2966517.

It is an arithmetic number, because the mean of its divisors is an integer number (8812852650).

Almost surely, 2^126857936942 is an apocalyptic number.

126857936942 is a deficient number, since it is larger than the sum of its proper divisors (84650526658).

126857936942 is a wasteful number, since it uses less digits than its factorization.

126857936942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890072 (or 5890061 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The spelling of 126857936942 in words is "one hundred twenty-six billion, eight hundred fifty-seven million, nine hundred thirty-six thousand, nine hundred forty-two".