42349649263 has 4 divisors (see below), whose sum is σ = 44840805120. Its totient is φ = 39858493408.

The previous prime is 42349649219. The next prime is 42349649281. The reversal of 42349649263 is 36294694324.

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

It is a cyclic number.

It is not a de Polignac number, because 42349649263 - 2³³ = 33759714671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42349649263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42349649963) 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, 1245577903 + ... + 1245577936.

It is an arithmetic number, because the mean of its divisors is an integer number (11210201280).

Almost surely, 2^42349649263 is an apocalyptic number.

42349649263 is a deficient number, since it is larger than the sum of its proper divisors (2491155857).

42349649263 is a wasteful number, since it uses less digits than its factorization.

42349649263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491155856.

The product of its digits is 6718464, while the sum is 52.

The spelling of 42349649263 in words is "forty-two billion, three hundred forty-nine million, six hundred forty-nine thousand, two hundred sixty-three".