74530444897 has 16 divisors (see below), whose sum is σ = 75583664640. Its totient is φ = 73484136000.

The previous prime is 74530444883. The next prime is 74530444969. The reversal of 74530444897 is 79844403547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74530444897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74530474897) 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, 29306808 + ... + 29309350.

It is an arithmetic number, because the mean of its divisors is an integer number (4723979040).

Almost surely, 2^74530444897 is an apocalyptic number.

It is an amenable number.

74530444897 is a deficient number, since it is larger than the sum of its proper divisors (1053219743).

74530444897 is a wasteful number, since it uses less digits than its factorization.

74530444897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 74530444897 in words is "seventy-four billion, five hundred thirty million, four hundred forty-four thousand, eight hundred ninety-seven".