42056299999 has 4 divisors (see below), whose sum is σ = 48064342864. Its totient is φ = 36048257136.

The previous prime is 42056299997. The next prime is 42056300053. The reversal of 42056299999 is 99999265024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42056299999 - 2¹ = 42056299997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42056299999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42056299997) 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, 3004021422 + ... + 3004021435.

It is an arithmetic number, because the mean of its divisors is an integer number (12016085716).

Almost surely, 2^42056299999 is an apocalyptic number.

42056299999 is a deficient number, since it is larger than the sum of its proper divisors (6008042865).

42056299999 is an equidigital number, since it uses as much as digits as its factorization.

42056299999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008042864.

The product of its (nonzero) digits is 28343520, while the sum is 64.

The spelling of 42056299999 in words is "forty-two billion, fifty-six million, two hundred ninety-nine thousand, nine hundred ninety-nine".