43742405536 has 48 divisors (see below), whose sum is σ = 88135901280. Its totient is φ = 21363413760.

The previous prime is 43742405521. The next prime is 43742405561. The reversal of 43742405536 is 63550424734.

It is a junction number, because it is equal to n+sod(n) for n = 43742405492 and 43742405501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222631 + ... + 370201.

It is an arithmetic number, because the mean of its divisors is an integer number (1836164610).

Almost surely, 2^43742405536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43742405536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44067950640).

43742405536 is an abundant number, since it is smaller than the sum of its proper divisors (44393495744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43742405536 is a wasteful number, since it uses less digits than its factorization.

43742405536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147797 (or 147789 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 43.

The spelling of 43742405536 in words is "forty-three billion, seven hundred forty-two million, four hundred five thousand, five hundred thirty-six".