74393108497 has 4 divisors (see below), whose sum is σ = 78308535280. Its totient is φ = 70477681716.

The previous prime is 74393108431. The next prime is 74393108527. The reversal of 74393108497 is 79480139347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74393108497 - 2³¹ = 72245624849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74393108597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957713363 + ... + 1957713400.

It is an arithmetic number, because the mean of its divisors is an integer number (19577133820).

Almost surely, 2^74393108497 is an apocalyptic number.

It is an amenable number.

74393108497 is a deficient number, since it is larger than the sum of its proper divisors (3915426783).

74393108497 is a wasteful number, since it uses less digits than its factorization.

74393108497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915426782.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 74393108497 in words is "seventy-four billion, three hundred ninety-three million, one hundred eight thousand, four hundred ninety-seven".