126686858112 has 128 divisors (see below), whose sum is σ = 374474599200. Its totient is φ = 42164305920.

The previous prime is 126686858099. The next prime is 126686858161. The reversal of 126686858112 is 211858686621.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256688 + ... + 2312144.

Almost surely, 2^126686858112 is an apocalyptic number.

126686858112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126686858112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187237299600).

126686858112 is an abundant number, since it is smaller than the sum of its proper divisors (247787741088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126686858112 is an equidigital number, since it uses as much as digits as its factorization.

126686858112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56141 (or 56123 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The spelling of 126686858112 in words is "one hundred twenty-six billion, six hundred eighty-six million, eight hundred fifty-eight thousand, one hundred twelve".