42821565522 has 8 divisors (see below), whose sum is σ = 85643131056. Its totient is φ = 14273855172.

The previous prime is 42821565509. The next prime is 42821565599. The reversal of 42821565522 is 22556512824.

It is a happy number.

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

42821565522 is an admirable number.

It is a super-3 number, since 3×42821565522³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3568463788 + ... + 3568463799.

It is an arithmetic number, because the mean of its divisors is an integer number (10705391382).

Almost surely, 2^42821565522 is an apocalyptic number.

42821565522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42821565522 is a wasteful number, since it uses less digits than its factorization.

42821565522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136927592.

The product of its digits is 384000, while the sum is 42.

The spelling of 42821565522 in words is "forty-two billion, eight hundred twenty-one million, five hundred sixty-five thousand, five hundred twenty-two".