43742702638 has 16 divisors (see below), whose sum is σ = 65868652800. Its totient is φ = 21786528096.

The previous prime is 43742702621. The next prime is 43742702683. The reversal of 43742702638 is 83620724734.

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, 2650420 + ... + 2666872.

It is an arithmetic number, because the mean of its divisors is an integer number (4116790800).

Almost surely, 2^43742702638 is an apocalyptic number.

43742702638 is a deficient number, since it is larger than the sum of its proper divisors (22125950162).

43742702638 is a wasteful number, since it uses less digits than its factorization.

43742702638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21531.

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 43742702638 in words is "forty-three billion, seven hundred forty-two million, seven hundred two thousand, six hundred thirty-eight".