74905835393 has 4 divisors (see below), whose sum is σ = 74911562580. Its totient is φ = 74900108208.

The previous prime is 74905835371. The next prime is 74905835437. The reversal of 74905835393 is 39353850947.

It is a happy number.

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 10271417104 + 64634418289 = 101348^2 + 254233^2 .

It is a cyclic number.

It is not a de Polignac number, because 74905835393 - 2³⁶ = 6186358657 is a prime.

It is a super-2 number, since 2×74905835393² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74905835363) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2843930 + ... + 2870147.

It is an arithmetic number, because the mean of its divisors is an integer number (18727890645).

Almost surely, 2^74905835393 is an apocalyptic number.

It is an amenable number.

74905835393 is a deficient number, since it is larger than the sum of its proper divisors (5727187).

74905835393 is a wasteful number, since it uses less digits than its factorization.

74905835393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727186.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 74905835393 in words is "seventy-four billion, nine hundred five million, eight hundred thirty-five thousand, three hundred ninety-three".