42352631646 has 128 divisors (see below), whose sum is σ = 96854123520. Its totient is φ = 12252377088.

The previous prime is 42352631623. The next prime is 42352631707. The reversal of 42352631646 is 64613625324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42352631598 and 42352631607.

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 63 ways as a sum of consecutive naturals, for example, 62930766 + ... + 62931438.

It is an arithmetic number, because the mean of its divisors is an integer number (756672840).

Almost surely, 2^42352631646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42352631646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48427061760).

42352631646 is an abundant number, since it is smaller than the sum of its proper divisors (54501491874).

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

42352631646 is a wasteful number, since it uses less digits than its factorization.

42352631646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its digits is 622080, while the sum is 42.

The spelling of 42352631646 in words is "forty-two billion, three hundred fifty-two million, six hundred thirty-one thousand, six hundred forty-six".