42005060771 has 4 divisors (see below), whose sum is σ = 42311667192. Its totient is φ = 41698454352.

The previous prime is 42005060737. The next prime is 42005060807. The reversal of 42005060771 is 17706050024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42005060771 is a prime.

It is a super-2 number, since 2×42005060771² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42005065771) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 153303005 + ... + 153303278.

It is an arithmetic number, because the mean of its divisors is an integer number (10577916798).

Almost surely, 2^42005060771 is an apocalyptic number.

42005060771 is a deficient number, since it is larger than the sum of its proper divisors (306606421).

42005060771 is a wasteful number, since it uses less digits than its factorization.

42005060771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306606420.

The product of its (nonzero) digits is 11760, while the sum is 32.

The spelling of 42005060771 in words is "forty-two billion, five million, sixty thousand, seven hundred seventy-one".