74453311673 has 16 divisors (see below), whose sum is σ = 86288758416. Its totient is φ = 63623024640.

The previous prime is 74453311643. The next prime is 74453311687. The reversal of 74453311673 is 37611335447.

It can be written as a sum of positive squares in 8 ways, for example, as 1829529529 + 72623782144 = 42773^2 + 269488^2 .

It is a cyclic number.

It is not a de Polignac number, because 74453311673 - 2⁸ = 74453311417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74453311643) 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, 2747936 + ... + 2774897.

It is an arithmetic number, because the mean of its divisors is an integer number (5393047401).

Almost surely, 2^74453311673 is an apocalyptic number.

It is an amenable number.

74453311673 is a deficient number, since it is larger than the sum of its proper divisors (11835446743).

74453311673 is a wasteful number, since it uses less digits than its factorization.

74453311673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522924.

The product of its digits is 635040, while the sum is 44.

The spelling of 74453311673 in words is "seventy-four billion, four hundred fifty-three million, three hundred eleven thousand, six hundred seventy-three".