42211304643 has 4 divisors (see below), whose sum is σ = 56281739528. Its totient is φ = 28140869760.

The previous prime is 42211304593. The next prime is 42211304651. The reversal of 42211304643 is 34640311224.

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

It is not a de Polignac number, because 42211304643 - 2¹⁸ = 42211042499 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 42211304643.

It is not an unprimeable number, because it can be changed into a prime (42211304143) 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, 7035217438 + ... + 7035217443.

It is an arithmetic number, because the mean of its divisors is an integer number (14070434882).

Almost surely, 2^42211304643 is an apocalyptic number.

42211304643 is a deficient number, since it is larger than the sum of its proper divisors (14070434885).

42211304643 is a wasteful number, since it uses less digits than its factorization.

42211304643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14070434884.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 42211304643 its reverse (34640311224), we get a palindrome (76851615867).

The spelling of 42211304643 in words is "forty-two billion, two hundred eleven million, three hundred four thousand, six hundred forty-three".