426289194630 has 384 divisors, whose sum is σ = 1315921904640. Its totient is φ = 97912488960.

The previous prime is 426289194623. The next prime is 426289194649. The reversal of 426289194630 is 36491982624.

426289194630 is a `hidden beast` number, since 4 + 2 + 628 + 9 + 1 + 9 + 4 + 6 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 43024137 + ... + 43034043.

It is an arithmetic number, because the mean of its divisors is an integer number (3426879960).

Almost surely, 2^426289194630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426289194630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657960952320).

426289194630 is an abundant number, since it is smaller than the sum of its proper divisors (889632710010).

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

426289194630 is a wasteful number, since it uses less digits than its factorization.

426289194630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10013 (or 9994 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 426289194630 in words is "four hundred twenty-six billion, two hundred eighty-nine million, one hundred ninety-four thousand, six hundred thirty".