43723432142 has 16 divisors (see below), whose sum is σ = 70830259920. Its totient is φ = 20122874112.

The previous prime is 43723432133. The next prime is 43723432157. The reversal of 43723432142 is 24123432734.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2372792 + ... + 2391147.

It is an arithmetic number, because the mean of its divisors is an integer number (4426891245).

Almost surely, 2^43723432142 is an apocalyptic number.

43723432142 is a deficient number, since it is larger than the sum of its proper divisors (27106827778).

43723432142 is a wasteful number, since it uses less digits than its factorization.

43723432142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764307.

The product of its digits is 96768, while the sum is 35.

Adding to 43723432142 its reverse (24123432734), we get a palindrome (67846864876).

The spelling of 43723432142 in words is "forty-three billion, seven hundred twenty-three million, four hundred thirty-two thousand, one hundred forty-two".