74143061121 has 4 divisors (see below), whose sum is σ = 98857414832. Its totient is φ = 49428707412.

The previous prime is 74143061117. The next prime is 74143061123. The reversal of 74143061121 is 12116034147.

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 74143061121 - 2² = 74143061117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74143061123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12357176851 + ... + 12357176856.

It is an arithmetic number, because the mean of its divisors is an integer number (24714353708).

Almost surely, 2^74143061121 is an apocalyptic number.

It is an amenable number.

74143061121 is a deficient number, since it is larger than the sum of its proper divisors (24714353711).

74143061121 is a wasteful number, since it uses less digits than its factorization.

74143061121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24714353710.

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 74143061121 its reverse (12116034147), we get a palindrome (86259095268).

The spelling of 74143061121 in words is "seventy-four billion, one hundred forty-three million, sixty-one thousand, one hundred twenty-one".