74712116345 has 8 divisors (see below), whose sum is σ = 89743400520. Its totient is φ = 59710452480.

The previous prime is 74712116327. The next prime is 74712116371. The reversal of 74712116345 is 54361121747.

It can be written as a sum of positive squares in 4 ways, for example, as 3442872976 + 71269243369 = 58676^2 + 266963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-74712116345 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7399526 + ... + 7409615.

It is an arithmetic number, because the mean of its divisors is an integer number (11217925065).

Almost surely, 2^74712116345 is an apocalyptic number.

It is an amenable number.

74712116345 is a deficient number, since it is larger than the sum of its proper divisors (15031284175).

74712116345 is a wasteful number, since it uses less digits than its factorization.

74712116345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14810155.

The product of its digits is 141120, while the sum is 41.

The spelling of 74712116345 in words is "seventy-four billion, seven hundred twelve million, one hundred sixteen thousand, three hundred forty-five".