42021808626 has 16 divisors (see below), whose sum is σ = 96049848384. Its totient is φ = 12006231024.

The previous prime is 42021808571. The next prime is 42021808639. The reversal of 42021808626 is 62680812024.

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 7 ways as a sum of consecutive naturals, for example, 500259585 + ... + 500259668.

It is an arithmetic number, because the mean of its divisors is an integer number (6003115524).

Almost surely, 2^42021808626 is an apocalyptic number.

42021808626 is an abundant number, since it is smaller than the sum of its proper divisors (54028039758).

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

42021808626 is a wasteful number, since it uses less digits than its factorization.

42021808626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000519265.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 42021808626 in words is "forty-two billion, twenty-one million, eight hundred eight thousand, six hundred twenty-six".