42221064984 has 64 divisors (see below), whose sum is σ = 120879552000. Its totient is φ = 12038367744.

The previous prime is 42221064979. The next prime is 42221065013. The reversal of 42221064984 is 48946012224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176209 + ... + 339840.

It is an arithmetic number, because the mean of its divisors is an integer number (1888743000).

Almost surely, 2^42221064984 is an apocalyptic number.

It is an amenable number.

42221064984 is an abundant number, since it is smaller than the sum of its proper divisors (78658487016).

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

42221064984 is a wasteful number, since it uses less digits than its factorization.

42221064984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516552 (or 516548 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 42221064984 in words is "forty-two billion, two hundred twenty-one million, sixty-four thousand, nine hundred eighty-four".