13422444128250 has 128 divisors (see below), whose sum is σ = 33815144563200. Its totient is φ = 3545918208000.

The previous prime is 13422444128213. The next prime is 13422444128293. The reversal of 13422444128250 is 5282144422431.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 875616586 + ... + 875631914.

It is an arithmetic number, because the mean of its divisors is an integer number (264180816900).

Almost surely, 2^{13422444128250} is an apocalyptic number.

13422444128250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13422444128250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16907572281600).

13422444128250 is an abundant number, since it is smaller than the sum of its proper divisors (20392700434950).

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

13422444128250 is a wasteful number, since it uses less digits than its factorization.

13422444128250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26169 (or 26159 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 42.

The spelling of 13422444128250 in words is "thirteen trillion, four hundred twenty-two billion, four hundred forty-four million, one hundred twenty-eight thousand, two hundred fifty".