40444480081 has 8 divisors (see below), whose sum is σ = 40601248640. Its totient is φ = 40287965328.

The previous prime is 40444480079. The next prime is 40444480103. The reversal of 40444480081 is 18008444404.

40444480081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40444480081 - 2¹ = 40444480079 is a prime.

It is a super-2 number, since 2×40444480081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40444480081.

It is not an unprimeable number, because it can be changed into a prime (40444480061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259030 + ... + 384688.

It is an arithmetic number, because the mean of its divisors is an integer number (5075156080).

Almost surely, 2^40444480081 is an apocalyptic number.

It is an amenable number.

40444480081 is a deficient number, since it is larger than the sum of its proper divisors (156768559).

40444480081 is a wasteful number, since it uses less digits than its factorization.

40444480081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126903.

The product of its (nonzero) digits is 65536, while the sum is 37.

The spelling of 40444480081 in words is "forty billion, four hundred forty-four million, four hundred eighty thousand, eighty-one".