42050721806 has 8 divisors (see below), whose sum is σ = 63094161384. Its totient is φ = 21019334680.

The previous prime is 42050721799. The next prime is 42050721847. The reversal of 42050721806 is 60812705024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3004385 + ... + 3018348.

It is an arithmetic number, because the mean of its divisors is an integer number (7886770173).

Almost surely, 2^42050721806 is an apocalyptic number.

42050721806 is a deficient number, since it is larger than the sum of its proper divisors (21043439578).

42050721806 is a wasteful number, since it uses less digits than its factorization.

42050721806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026226.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 42050721806 in words is "forty-two billion, fifty million, seven hundred twenty-one thousand, eight hundred six".