74891741065 has 16 divisors (see below), whose sum is σ = 96802569216. Its totient is φ = 55459800000.

The previous prime is 74891741059. The next prime is 74891741069. The reversal of 74891741065 is 56014719847.

It is a happy number.

It is not a de Polignac number, because 74891741065 - 2¹³ = 74891732873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74891741069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10500186 + ... + 10507315.

It is an arithmetic number, because the mean of its divisors is an integer number (6050160576).

Almost surely, 2^74891741065 is an apocalyptic number.

It is an amenable number.

74891741065 is a deficient number, since it is larger than the sum of its proper divisors (21910828151).

74891741065 is a wasteful number, since it uses less digits than its factorization.

74891741065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21007560.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 74891741065 in words is "seventy-four billion, eight hundred ninety-one million, seven hundred forty-one thousand, sixty-five".