74734134674 has 4 divisors (see below), whose sum is σ = 112101202014. Its totient is φ = 37367067336.

The previous prime is 74734134659. The next prime is 74734134679. The reversal of 74734134674 is 47643143747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47643143747 = 135077 ⋅352711.

It can be written as a sum of positive squares in only one way, i.e., 74329843225 + 404291449 = 272635^2 + 20107^2 .

It is not an unprimeable number, because it can be changed into a prime (74734134679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18683533667 + ... + 18683533670.

Almost surely, 2^74734134674 is an apocalyptic number.

74734134674 is a deficient number, since it is larger than the sum of its proper divisors (37367067340).

74734134674 is a wasteful number, since it uses less digits than its factorization.

74734134674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37367067339.

The product of its digits is 4741632, while the sum is 50.

The spelling of 74734134674 in words is "seventy-four billion, seven hundred thirty-four million, one hundred thirty-four thousand, six hundred seventy-four".