74128528311 has 4 divisors (see below), whose sum is σ = 98838037752. Its totient is φ = 49419018872.

The previous prime is 74128528307. The next prime is 74128528333. The reversal of 74128528311 is 11382582147.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74128528311 - 2² = 74128528307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74128528351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12354754716 + ... + 12354754721.

It is an arithmetic number, because the mean of its divisors is an integer number (24709509438).

Almost surely, 2^74128528311 is an apocalyptic number.

74128528311 is a deficient number, since it is larger than the sum of its proper divisors (24709509441).

74128528311 is a wasteful number, since it uses less digits than its factorization.

74128528311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24709509440.

The product of its digits is 107520, while the sum is 42.

The spelling of 74128528311 in words is "seventy-four billion, one hundred twenty-eight million, five hundred twenty-eight thousand, three hundred eleven".