42211304644 has 6 divisors (see below), whose sum is σ = 73869783134. Its totient is φ = 21105652320.

The previous prime is 42211304593. The next prime is 42211304651. The reversal of 42211304644 is 44640311224.

It can be written as a sum of positive squares in only one way, i.e., 33888391744 + 8322912900 = 184088^2 + 91230^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5276413077 + ... + 5276413084.

Almost surely, 2^42211304644 is an apocalyptic number.

It is an amenable number.

42211304644 is a deficient number, since it is larger than the sum of its proper divisors (31658478490).

42211304644 is a wasteful number, since it uses less digits than its factorization.

42211304644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10552826165 (or 10552826163 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 42211304644 its reverse (44640311224), we get a palindrome (86851615868).

The spelling of 42211304644 in words is "forty-two billion, two hundred eleven million, three hundred four thousand, six hundred forty-four".