426646163430 has 288 divisors, whose sum is σ = 1192470552000. Its totient is φ = 105629432832.

The previous prime is 426646163399. The next prime is 426646163441. The reversal of 426646163430 is 34361646624.

426646163430 is a `hidden beast` number, since 4 + 2 + 6 + 6 + 4 + 6 + 1 + 634 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 2143950471 + ... + 2143950669.

It is an arithmetic number, because the mean of its divisors is an integer number (4140522750).

Almost surely, 2^426646163430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426646163430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596235276000).

426646163430 is an abundant number, since it is smaller than the sum of its proper divisors (765824388570).

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

426646163430 is a wasteful number, since it uses less digits than its factorization.

426646163430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 426646163430 in words is "four hundred twenty-six billion, six hundred forty-six million, one hundred sixty-three thousand, four hundred thirty".