74443555557 has 48 divisors (see below), whose sum is σ = 126354009600. Its totient is φ = 41348102400.

The previous prime is 74443555547. The next prime is 74443555579. The reversal of 74443555557 is 75555534447.

It is a happy number.

74443555557 is a `hidden beast` number, since 7 + 4 + 4 + 4 + 35 + 55 + 557 = 666.

It is not a de Polignac number, because 74443555557 - 2⁴ = 74443555541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74443555547) 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, 646819 + ... + 753167.

It is an arithmetic number, because the mean of its divisors is an integer number (2632375200).

Almost surely, 2^74443555557 is an apocalyptic number.

It is an amenable number.

74443555557 is a deficient number, since it is larger than the sum of its proper divisors (51910454043).

74443555557 is a wasteful number, since it uses less digits than its factorization.

74443555557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106674 (or 106671 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 54.

The spelling of 74443555557 in words is "seventy-four billion, four hundred forty-three million, five hundred fifty-five thousand, five hundred fifty-seven".