74943314849 has 8 divisors (see below), whose sum is σ = 80712056040. Its totient is φ = 69175126656.

The previous prime is 74943314837. The next prime is 74943314881. The reversal of 74943314849 is 94841334947.

It can be written as a sum of positive squares in 4 ways, for example, as 4824274849 + 70119040000 = 69457^2 + 264800^2 .

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 74943314849 - 2¹² = 74943310753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74943314794 and 74943314803.

It is not an unprimeable number, because it can be changed into a prime (74943314819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168437 + ... + 422205.

It is an arithmetic number, because the mean of its divisors is an integer number (10089007005).

Almost surely, 2^74943314849 is an apocalyptic number.

It is an amenable number.

74943314849 is a deficient number, since it is larger than the sum of its proper divisors (5768741191).

74943314849 is a wasteful number, since it uses less digits than its factorization.

74943314849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276499.

The product of its digits is 10450944, while the sum is 56.

The spelling of 74943314849 in words is "seventy-four billion, nine hundred forty-three million, three hundred fourteen thousand, eight hundred forty-nine".