43215445352 has 16 divisors (see below), whose sum is σ = 81184493700. Its totient is φ = 21566247040.

The previous prime is 43215445321. The next prime is 43215445379. The reversal of 43215445352 is 25354451234.

It can be written as a sum of positive squares in 2 ways, for example, as 36835589476 + 6379855876 = 191926^2 + 79874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5180027 + ... + 5188362.

Almost surely, 2^43215445352 is an apocalyptic number.

It is an amenable number.

43215445352 is a deficient number, since it is larger than the sum of its proper divisors (37969048348).

43215445352 is a wasteful number, since it uses less digits than its factorization.

43215445352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368916 (or 10368912 counting only the distinct ones).

The product of its digits is 288000, while the sum is 38.

Adding to 43215445352 its reverse (25354451234), we get a palindrome (68569896586).

The spelling of 43215445352 in words is "forty-three billion, two hundred fifteen million, four hundred forty-five thousand, three hundred fifty-two".