42121771076 has 24 divisors (see below), whose sum is σ = 91902046656. Its totient is φ = 16411079520.

The previous prime is 42121771039. The next prime is 42121771151. The reversal of 42121771076 is 67017712124.

It is an unprimeable number.

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, 68379191 + ... + 68379806.

It is an arithmetic number, because the mean of its divisors is an integer number (3829251944).

Almost surely, 2^42121771076 is an apocalyptic number.

It is an amenable number.

42121771076 is an abundant number, since it is smaller than the sum of its proper divisors (49780275580).

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

42121771076 is a wasteful number, since it uses less digits than its factorization.

42121771076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136759019 (or 136759017 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

The spelling of 42121771076 in words is "forty-two billion, one hundred twenty-one million, seven hundred seventy-one thousand, seventy-six".