40744461064 has 16 divisors (see below), whose sum is σ = 79030205100. Its totient is φ = 19669739712.

The previous prime is 40744461059. The next prime is 40744461071. The reversal of 40744461064 is 46016444704.

It can be written as a sum of positive squares in 2 ways, for example, as 40582102500 + 162358564 = 201450^2 + 12742^2 .

It is a super-2 number, since 2×40744461064² (a number of 22 digits) contains 22 as substring.

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, 87811107 + ... + 87811570.

Almost surely, 2^40744461064 is an apocalyptic number.

It is an amenable number.

40744461064 is a deficient number, since it is larger than the sum of its proper divisors (38285744036).

40744461064 is a wasteful number, since it uses less digits than its factorization.

40744461064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175622712 (or 175622708 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 40744461064 in words is "forty billion, seven hundred forty-four million, four hundred sixty-one thousand, sixty-four".