126215458432 has 128 divisors (see below), whose sum is σ = 293981788800. Its totient is φ = 52855296000.

The previous prime is 126215458399. The next prime is 126215458433. The reversal of 126215458432 is 234854512621.

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

It is not an unprimeable number, because it can be changed into a prime (126215458433) 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, 11914194 + ... + 11924782.

It is an arithmetic number, because the mean of its divisors is an integer number (2296732725).

Almost surely, 2^126215458432 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 126215458432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146990894400).

126215458432 is an abundant number, since it is smaller than the sum of its proper divisors (167766330368).

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

126215458432 is a wasteful number, since it uses less digits than its factorization.

126215458432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10914 (or 10902 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The spelling of 126215458432 in words is "one hundred twenty-six billion, two hundred fifteen million, four hundred fifty-eight thousand, four hundred thirty-two".