74247168745 has 4 divisors (see below), whose sum is σ = 89096602500. Its totient is φ = 59397734992.

The previous prime is 74247168731. The next prime is 74247168757. The reversal of 74247168745 is 54786174247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54357989904 + 19889178841 = 233148^2 + 141029^2 .

It is a cyclic number.

It is not a de Polignac number, because 74247168745 - 2³⁵ = 39887430377 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7424716870 + ... + 7424716879.

It is an arithmetic number, because the mean of its divisors is an integer number (22274150625).

Almost surely, 2^74247168745 is an apocalyptic number.

It is an amenable number.

74247168745 is a deficient number, since it is larger than the sum of its proper divisors (14849433755).

74247168745 is a wasteful number, since it uses less digits than its factorization.

74247168745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14849433754.

The product of its digits is 10536960, while the sum is 55.

The spelling of 74247168745 in words is "seventy-four billion, two hundred forty-seven million, one hundred sixty-eight thousand, seven hundred forty-five".