42681650421 has 8 divisors (see below), whose sum is σ = 58871242080. Its totient is φ = 27473246192.

The previous prime is 42681650411. The next prime is 42681650447. The reversal of 42681650421 is 12405618624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42681650421 - 2¹⁵ = 42681617653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42681650421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42681650411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245296755 + ... + 245296928.

It is an arithmetic number, because the mean of its divisors is an integer number (7358905260).

Almost surely, 2^42681650421 is an apocalyptic number.

It is an amenable number.

42681650421 is a deficient number, since it is larger than the sum of its proper divisors (16189591659).

42681650421 is a wasteful number, since it uses less digits than its factorization.

42681650421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490593715.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 42681650421 in words is "forty-two billion, six hundred eighty-one million, six hundred fifty thousand, four hundred twenty-one".