42991873383 has 4 divisors (see below), whose sum is σ = 57322497848. Its totient is φ = 28661248920.

The previous prime is 42991873369. The next prime is 42991873399. The reversal of 42991873383 is 38337819924.

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

It is not a de Polignac number, because 42991873383 - 2²⁵ = 42958318951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42991873783) 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 3 ways as a sum of consecutive naturals, for example, 7165312228 + ... + 7165312233.

It is an arithmetic number, because the mean of its divisors is an integer number (14330624462).

Almost surely, 2^42991873383 is an apocalyptic number.

42991873383 is a deficient number, since it is larger than the sum of its proper divisors (14330624465).

42991873383 is a wasteful number, since it uses less digits than its factorization.

42991873383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14330624464.

The product of its digits is 7838208, while the sum is 57.

The spelling of 42991873383 in words is "forty-two billion, nine hundred ninety-one million, eight hundred seventy-three thousand, three hundred eighty-three".