74441745081 has 48 divisors (see below), whose sum is σ = 118989044928. Its totient is φ = 44471376000.

The previous prime is 74441745061. The next prime is 74441745139. The reversal of 74441745081 is 18054714447.

74441745081 is a `hidden beast` number, since 74 + 4 + 4 + 1 + 74 + 508 + 1 = 666.

It is not a de Polignac number, because 74441745081 - 2⁶ = 74441745017 is a prime.

It is a super-2 number, since 2×74441745081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74441745011) 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 47 ways as a sum of consecutive naturals, for example, 2253375 + ... + 2286171.

It is an arithmetic number, because the mean of its divisors is an integer number (2478938436).

Almost surely, 2^74441745081 is an apocalyptic number.

It is an amenable number.

74441745081 is a deficient number, since it is larger than the sum of its proper divisors (44547299847).

74441745081 is a wasteful number, since it uses less digits than its factorization.

74441745081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33142 (or 33139 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 74441745081 in words is "seventy-four billion, four hundred forty-one million, seven hundred forty-five thousand, eighty-one".