42939973373 has 24 divisors (see below), whose sum is σ = 48892582200. Its totient is φ = 37638881280.

The previous prime is 42939973357. The next prime is 42939973399. The reversal of 42939973373 is 37337993924.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10562289529 + 32377683844 = 102773^2 + 179938^2 .

It is not a de Polignac number, because 42939973373 - 2⁴ = 42939973357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939972373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2690465 + ... + 2706377.

It is an arithmetic number, because the mean of its divisors is an integer number (2037190925).

Almost surely, 2^42939973373 is an apocalyptic number.

It is an amenable number.

42939973373 is a deficient number, since it is larger than the sum of its proper divisors (5952608827).

42939973373 is a wasteful number, since it uses less digits than its factorization.

42939973373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16733 (or 16722 counting only the distinct ones).

The product of its digits is 23147208, while the sum is 59.

The spelling of 42939973373 in words is "forty-two billion, nine hundred thirty-nine million, nine hundred seventy-three thousand, three hundred seventy-three".