426847191888 has 80 divisors (see below), whose sum is σ = 1189276450880. Its totient is φ = 131142316032.

The previous prime is 426847191887. The next prime is 426847191907. The reversal of 426847191888 is 888191748624.

It is a super-3 number, since 3×426847191888³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426847191887) 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, 88258 + ... + 928161.

It is an arithmetic number, because the mean of its divisors is an integer number (14865955636).

Almost surely, 2^426847191888 is an apocalyptic number.

426847191888 is a gapful number since it is divisible by the number (48) 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 426847191888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594638225440).

426847191888 is an abundant number, since it is smaller than the sum of its proper divisors (762429258992).

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

426847191888 is a wasteful number, since it uses less digits than its factorization.

426847191888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017116 (or 1017110 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 66.

The spelling of 426847191888 in words is "four hundred twenty-six billion, eight hundred forty-seven million, one hundred ninety-one thousand, eight hundred eighty-eight".