74604894017 has 4 divisors (see below), whose sum is σ = 75343556436. Its totient is φ = 73866231600.

The previous prime is 74604893983. The next prime is 74604894053. The reversal of 74604894017 is 71049840647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71049840647 = 17 ⋅4179402391.

It can be written as a sum of positive squares in 2 ways, for example, as 73354847281 + 1250046736 = 270841^2 + 35356^2 .

It is a cyclic number.

It is not a de Polignac number, because 74604894017 - 2⁸ = 74604893761 is a prime.

It is a super-2 number, since 2×74604894017² (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 (74604494017) 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, 369331058 + ... + 369331259.

It is an arithmetic number, because the mean of its divisors is an integer number (18835889109).

Almost surely, 2^74604894017 is an apocalyptic number.

It is an amenable number.

74604894017 is a deficient number, since it is larger than the sum of its proper divisors (738662419).

74604894017 is a wasteful number, since it uses less digits than its factorization.

74604894017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738662418.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 74604894017 in words is "seventy-four billion, six hundred four million, eight hundred ninety-four thousand, seventeen".