42272164349 has 4 divisors (see below), whose sum is σ = 42555870300. Its totient is φ = 41988458400.

The previous prime is 42272164343. The next prime is 42272164423. The reversal of 42272164349 is 94346127224.

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 9195467449 + 33076696900 = 95893^2 + 181870^2 .

It is a cyclic number.

It is not a de Polignac number, because 42272164349 - 2²⁴ = 42255387133 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 (42272164343) 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, 141852752 + ... + 141853049.

It is an arithmetic number, because the mean of its divisors is an integer number (10638967575).

Almost surely, 2^42272164349 is an apocalyptic number.

It is an amenable number.

42272164349 is a deficient number, since it is larger than the sum of its proper divisors (283705951).

42272164349 is a wasteful number, since it uses less digits than its factorization.

42272164349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283705950.

The product of its digits is 580608, while the sum is 44.

The spelling of 42272164349 in words is "forty-two billion, two hundred seventy-two million, one hundred sixty-four thousand, three hundred forty-nine".