426859778886 has 32 divisors (see below), whose sum is σ = 924960187008. Its totient is φ = 130802448000.

The previous prime is 426859778881. The next prime is 426859778923. The reversal of 426859778886 is 688877958624.

It is a super-3 number, since 3×426859778886³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426859778881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48657240 + ... + 48666011.

It is an arithmetic number, because the mean of its divisors is an integer number (28905005844).

Almost surely, 2^426859778886 is an apocalyptic number.

426859778886 is an abundant number, since it is smaller than the sum of its proper divisors (498100408122).

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

426859778886 is a wasteful number, since it uses less digits than its factorization.

426859778886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97323316.

The product of its digits is 2601123840, while the sum is 78.

The spelling of 426859778886 in words is "four hundred twenty-six billion, eight hundred fifty-nine million, seven hundred seventy-eight thousand, eight hundred eighty-six".