74352225305021 has 4 divisors (see below), whose sum is σ = 74411281879200. Its totient is φ = 74293168730844.

The previous prime is 74352225305009. The next prime is 74352225305077. The reversal of 74352225305021 is 12050352225347.

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 a cyclic number.

It is not a de Polignac number, because 74352225305021 - 2¹⁰ = 74352225303997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74352225305021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74352225305221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29528285201 + ... + 29528287718.

It is an arithmetic number, because the mean of its divisors is an integer number (18602820469800).

Almost surely, 2^{74352225305021} is an apocalyptic number.

It is an amenable number.

74352225305021 is a deficient number, since it is larger than the sum of its proper divisors (59056574179).

74352225305021 is a wasteful number, since it uses less digits than its factorization.

74352225305021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59056574178.

The product of its (nonzero) digits is 504000, while the sum is 41.

The spelling of 74352225305021 in words is "seventy-four trillion, three hundred fifty-two billion, two hundred twenty-five million, three hundred five thousand, twenty-one".