426778226052 has 12 divisors (see below), whose sum is σ = 995815860816. Its totient is φ = 142259408680.

The previous prime is 426778226011. The next prime is 426778226111. The reversal of 426778226052 is 250622877624.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 426778225986 and 426778226004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17782426074 + ... + 17782426097.

It is an arithmetic number, because the mean of its divisors is an integer number (82984655068).

Almost surely, 2^426778226052 is an apocalyptic number.

It is an amenable number.

426778226052 is an abundant number, since it is smaller than the sum of its proper divisors (569037634764).

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

426778226052 is a wasteful number, since it uses less digits than its factorization.

426778226052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35564852178 (or 35564852176 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 426778226052 in words is "four hundred twenty-six billion, seven hundred seventy-eight million, two hundred twenty-six thousand, fifty-two".