74134793121 has 8 divisors (see below), whose sum is σ = 98849510304. Its totient is φ = 49421635680.

The previous prime is 74134793071. The next prime is 74134793143. The reversal of 74134793121 is 12139743147.

It is a happy number.

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

It is not a de Polignac number, because 74134793121 - 2⁷ = 74134792993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74134791121) 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, 274116 + ... + 472661.

It is an arithmetic number, because the mean of its divisors is an integer number (12356188788).

Almost surely, 2^74134793121 is an apocalyptic number.

It is an amenable number.

74134793121 is a deficient number, since it is larger than the sum of its proper divisors (24714717183).

74134793121 is a wasteful number, since it uses less digits than its factorization.

74134793121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779871.

The product of its digits is 127008, while the sum is 42.

The spelling of 74134793121 in words is "seventy-four billion, one hundred thirty-four million, seven hundred ninety-three thousand, one hundred twenty-one".