126886899744 has 864 divisors, whose sum is σ = 440448503040. Its totient is φ = 34502307840.

The previous prime is 126886899731. The next prime is 126886899749. The reversal of 126886899744 is 447998688621.

It is a super-2 number, since 2×126886899744² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (334430208) is a multiple of the sum of its prime divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126886899749) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1231911597 + ... + 1231911699.

It is an arithmetic number, because the mean of its divisors is an integer number (509778360).

Almost surely, 2^126886899744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126886899744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220224251520).

126886899744 is an abundant number, since it is smaller than the sum of its proper divisors (313561603296).

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

126886899744 is a wasteful number, since it uses less digits than its factorization.

126886899744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 224 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The spelling of 126886899744 in words is "one hundred twenty-six billion, eight hundred eighty-six million, eight hundred ninety-nine thousand, seven hundred forty-four".