42088665630 has 128 divisors (see below), whose sum is σ = 110935858176. Its totient is φ = 10135065600.

The previous prime is 42088665617. The next prime is 42088665679. The reversal of 42088665630 is 3656688024.

It is a self number, because there is not a number n which added to its sum of digits gives 42088665630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40743594 + ... + 40744626.

It is an arithmetic number, because the mean of its divisors is an integer number (866686392).

Almost surely, 2^42088665630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42088665630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55467929088).

42088665630 is an abundant number, since it is smaller than the sum of its proper divisors (68847192546).

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

42088665630 is a wasteful number, since it uses less digits than its factorization.

42088665630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 42088665630 in words is "forty-two billion, eighty-eight million, six hundred sixty-five thousand, six hundred thirty".