126850003440 has 320 divisors, whose sum is σ = 410791755264. Its totient is φ = 32356122624.

The previous prime is 126850003381. The next prime is 126850003471. The reversal of 126850003440 is 44300058621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122797164 + ... + 122798196.

Almost surely, 2^126850003440 is an apocalyptic number.

126850003440 is a gapful number since it is divisible by the number (10) 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 126850003440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205395877632).

126850003440 is an abundant number, since it is smaller than the sum of its proper divisors (283941751824).

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

126850003440 is a wasteful number, since it uses less digits than its factorization.

126850003440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 126850003440 in words is "one hundred twenty-six billion, eight hundred fifty million, three thousand, four hundred forty".