74338044689 has 4 divisors (see below), whose sum is σ = 74341353840. Its totient is φ = 74334735540.

The previous prime is 74338044637. The next prime is 74338044707. The reversal of 74338044689 is 98644083347.

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 74338044689 - 2¹² = 74338040593 is a prime.

It is a super-2 number, since 2×74338044689² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74338041689) 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, 1620647 + ... + 1665884.

It is an arithmetic number, because the mean of its divisors is an integer number (18585338460).

Almost surely, 2^74338044689 is an apocalyptic number.

It is an amenable number.

74338044689 is a deficient number, since it is larger than the sum of its proper divisors (3309151).

74338044689 is a wasteful number, since it uses less digits than its factorization.

74338044689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309150.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 74338044689 in words is "seventy-four billion, three hundred thirty-eight million, forty-four thousand, six hundred eighty-nine".