126813507320 has 64 divisors (see below), whose sum is σ = 290534882400. Its totient is φ = 49802344960.

The previous prime is 126813507281. The next prime is 126813507323. The reversal of 126813507320 is 23705318621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126813507323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847210 + ... + 1914630.

Almost surely, 2^126813507320 is an apocalyptic number.

126813507320 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 126813507320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145267441200).

126813507320 is an abundant number, since it is smaller than the sum of its proper divisors (163721375080).

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

126813507320 is a wasteful number, since it uses less digits than its factorization.

126813507320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68288 (or 68284 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 126813507320 in words is "one hundred twenty-six billion, eight hundred thirteen million, five hundred seven thousand, three hundred twenty".