42038499799 has 4 divisors (see below), whose sum is σ = 44251052440. Its totient is φ = 39825947160.

The previous prime is 42038499791. The next prime is 42038499823. The reversal of 42038499799 is 99799483024.

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 42038499799 - 2³ = 42038499791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42038499799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42038499791) 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, 1106276292 + ... + 1106276329.

It is an arithmetic number, because the mean of its divisors is an integer number (11062763110).

Almost surely, 2^42038499799 is an apocalyptic number.

42038499799 is a deficient number, since it is larger than the sum of its proper divisors (2212552641).

42038499799 is a wasteful number, since it uses less digits than its factorization.

42038499799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212552640.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 42038499799 in words is "forty-two billion, thirty-eight million, four hundred ninety-nine thousand, seven hundred ninety-nine".