74666065513 has 8 divisors (see below), whose sum is σ = 80476578056. Its totient is φ = 68865120000.

The previous prime is 74666065511. The next prime is 74666065549. The reversal of 74666065513 is 31556066647.

It can be written as a sum of positive squares in 4 ways, for example, as 8725988569 + 65940076944 = 93413^2 + 256788^2 .

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 74666065513 - 2¹ = 74666065511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74666065511) 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, 2375538 + ... + 2406763.

It is an arithmetic number, because the mean of its divisors is an integer number (10059572257).

Almost surely, 2^74666065513 is an apocalyptic number.

It is an amenable number.

74666065513 is a deficient number, since it is larger than the sum of its proper divisors (5810512543).

74666065513 is a wasteful number, since it uses less digits than its factorization.

74666065513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783515.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 74666065513 in words is "seventy-four billion, six hundred sixty-six million, sixty-five thousand, five hundred thirteen".