42071205506 has 16 divisors (see below), whose sum is σ = 72467148960. Its totient is φ = 18116786880.

The previous prime is 42071205503. The next prime is 42071205509. The reversal of 42071205506 is 60550217024.

It is an interprime number because it is at equal distance from previous prime (42071205503) and next prime (42071205509).

It is not an unprimeable number, because it can be changed into a prime (42071205503) by changing a digit.

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, 50323991 + ... + 50324826.

It is an arithmetic number, because the mean of its divisors is an integer number (4529196810).

Almost surely, 2^42071205506 is an apocalyptic number.

42071205506 is a deficient number, since it is larger than the sum of its proper divisors (30395943454).

42071205506 is a wasteful number, since it uses less digits than its factorization.

42071205506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100648849.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 42071205506 in words is "forty-two billion, seventy-one million, two hundred five thousand, five hundred six".