674221745121 has 8 divisors (see below), whose sum is σ = 902161482144. Its totient is φ = 447881585760.

The previous prime is 674221745117. The next prime is 674221745129. The reversal of 674221745121 is 121547122476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674221745121 - 2² = 674221745117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674221745129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399893431 + ... + 399895116.

It is an arithmetic number, because the mean of its divisors is an integer number (112770185268).

Almost surely, 2^674221745121 is an apocalyptic number.

It is an amenable number.

674221745121 is a deficient number, since it is larger than the sum of its proper divisors (227939737023).

674221745121 is a wasteful number, since it uses less digits than its factorization.

674221745121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799788831.

The product of its digits is 188160, while the sum is 42.

Adding to 674221745121 its reverse (121547122476), we get a palindrome (795768867597).

The spelling of 674221745121 in words is "six hundred seventy-four billion, two hundred twenty-one million, seven hundred forty-five thousand, one hundred twenty-one".