42938938929 has 16 divisors (see below), whose sum is σ = 60927406848. Its totient is φ = 26805311232.

The previous prime is 42938938859. The next prime is 42938938961. The reversal of 42938938929 is 92983983924.

It is not a de Polignac number, because 42938938929 - 2⁸ = 42938938673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42938938929.

It is not an unprimeable number, because it can be changed into a prime (42938938979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2126857 + ... + 2146950.

It is an arithmetic number, because the mean of its divisors is an integer number (3807962928).

Almost surely, 2^42938938929 is an apocalyptic number.

It is an amenable number.

42938938929 is a deficient number, since it is larger than the sum of its proper divisors (17988467919).

42938938929 is a wasteful number, since it uses less digits than its factorization.

42938938929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274024.

The product of its digits is 60466176, while the sum is 66.

The spelling of 42938938929 in words is "forty-two billion, nine hundred thirty-eight million, nine hundred thirty-eight thousand, nine hundred twenty-nine".