42723844916 has 24 divisors (see below), whose sum is σ = 79264200456. Its totient is φ = 20080087040.

The previous prime is 42723844901. The next prime is 42723844921. The reversal of 42723844916 is 61944832724.

It can be written as a sum of positive squares in 4 ways, for example, as 2475460516 + 40248384400 = 49754^2 + 200620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339965 + ... + 448356.

It is an arithmetic number, because the mean of its divisors is an integer number (3302675019).

Almost surely, 2^42723844916 is an apocalyptic number.

It is an amenable number.

42723844916 is a deficient number, since it is larger than the sum of its proper divisors (36540355540).

42723844916 is a wasteful number, since it uses less digits than its factorization.

42723844916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789139 (or 789137 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 50.

The spelling of 42723844916 in words is "forty-two billion, seven hundred twenty-three million, eight hundred forty-four thousand, nine hundred sixteen".