42974883839 has 4 divisors (see below), whose sum is σ = 44136367224. Its totient is φ = 41813400456.

The previous prime is 42974883827. The next prime is 42974883841. The reversal of 42974883839 is 93838847924.

42974883839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-42974883839 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 (42974853839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580741637 + ... + 580741710.

It is an arithmetic number, because the mean of its divisors is an integer number (11034091806).

Almost surely, 2^42974883839 is an apocalyptic number.

42974883839 is a deficient number, since it is larger than the sum of its proper divisors (1161483385).

42974883839 is a wasteful number, since it uses less digits than its factorization.

42974883839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161483384.

The product of its digits is 83607552, while the sum is 65.

The spelling of 42974883839 in words is "forty-two billion, nine hundred seventy-four million, eight hundred eighty-three thousand, eight hundred thirty-nine".