74234517789 has 4 divisors (see below), whose sum is σ = 98979357056. Its totient is φ = 49489678524.

The previous prime is 74234517757. The next prime is 74234517793. The reversal of 74234517789 is 98771543247.

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 not a de Polignac number, because 74234517789 - 2⁵ = 74234517757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74234513789) 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, 12372419629 + ... + 12372419634.

It is an arithmetic number, because the mean of its divisors is an integer number (24744839264).

Almost surely, 2^74234517789 is an apocalyptic number.

It is an amenable number.

74234517789 is a deficient number, since it is larger than the sum of its proper divisors (24744839267).

74234517789 is a wasteful number, since it uses less digits than its factorization.

74234517789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24744839266.

The product of its digits is 11854080, while the sum is 57.

The spelling of 74234517789 in words is "seventy-four billion, two hundred thirty-four million, five hundred seventeen thousand, seven hundred eighty-nine".