42217165824 has 88 divisors (see below), whose sum is σ = 118446625440. Its totient is φ = 13331718144.

The previous prime is 42217165813. The next prime is 42217165897. The reversal of 42217165824 is 42856171224.

It is a super-2 number, since 2×42217165824² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303279 + ... + 420014.

It is an arithmetic number, because the mean of its divisors is an integer number (1345984380).

Almost surely, 2^42217165824 is an apocalyptic number.

It is an amenable number.

42217165824 is an abundant number, since it is smaller than the sum of its proper divisors (76229459616).

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

42217165824 is a wasteful number, since it uses less digits than its factorization.

42217165824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723335 (or 723317 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The spelling of 42217165824 in words is "forty-two billion, two hundred seventeen million, one hundred sixty-five thousand, eight hundred twenty-four".