426008020878 has 96 divisors (see below), whose sum is σ = 1035718605792. Its totient is φ = 125412883200.

The previous prime is 426008020873. The next prime is 426008020931. The reversal of 426008020878 is 878020800624.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426008020871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4798500 + ... + 4886472.

It is an arithmetic number, because the mean of its divisors is an integer number (10788735477).

Almost surely, 2^426008020878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426008020878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517859302896).

426008020878 is an abundant number, since it is smaller than the sum of its proper divisors (609710584914).

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

426008020878 is a wasteful number, since it uses less digits than its factorization.

426008020878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88690 (or 88687 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 426008020878 in words is "four hundred twenty-six billion, eight million, twenty thousand, eight hundred seventy-eight".