42744606736 has 80 divisors (see below), whose sum is σ = 94030162240. Its totient is φ = 18660533760.

The previous prime is 42744606731. The next prime is 42744606767. The reversal of 42744606736 is 63760644724.

It is a self number, because there is not a number n which added to its sum of digits gives 42744606736.

It is not an unprimeable number, because it can be changed into a prime (42744606731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2604091 + ... + 2620453.

It is an arithmetic number, because the mean of its divisors is an integer number (1175377028).

Almost surely, 2^42744606736 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 42744606736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47015081120).

42744606736 is an abundant number, since it is smaller than the sum of its proper divisors (51285555504).

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

42744606736 is a wasteful number, since it uses less digits than its factorization.

42744606736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064 (or 17058 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 42744606736 in words is "forty-two billion, seven hundred forty-four million, six hundred six thousand, seven hundred thirty-six".