43221980686 has 4 divisors (see below), whose sum is σ = 64832971032. Its totient is φ = 21610990342.

The previous prime is 43221980677. The next prime is 43221980687. The reversal of 43221980686 is 68608912234.

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

It is a super-2 number, since 2×43221980686² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43221980687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10805495170 + ... + 10805495173.

It is an arithmetic number, because the mean of its divisors is an integer number (16208242758).

Almost surely, 2^43221980686 is an apocalyptic number.

43221980686 is a deficient number, since it is larger than the sum of its proper divisors (21610990346).

43221980686 is a wasteful number, since it uses less digits than its factorization.

43221980686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610990345.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 43221980686 in words is "forty-three billion, two hundred twenty-one million, nine hundred eighty thousand, six hundred eighty-six".