42971083229 has 4 divisors (see below), whose sum is σ = 42972295740. Its totient is φ = 42969870720.

The previous prime is 42971083201. The next prime is 42971083247. The reversal of 42971083229 is 92238017924.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17976105625 + 24994977604 = 134075^2 + 158098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42971083229 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 (42971083279) 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, 551444 + ... + 624525.

It is an arithmetic number, because the mean of its divisors is an integer number (10743073935).

Almost surely, 2^42971083229 is an apocalyptic number.

It is an amenable number.

42971083229 is a deficient number, since it is larger than the sum of its proper divisors (1212511).

42971083229 is a wasteful number, since it uses less digits than its factorization.

42971083229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212510.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 42971083229 in words is "forty-two billion, nine hundred seventy-one million, eighty-three thousand, two hundred twenty-nine".