74224147397 has 8 divisors (see below), whose sum is σ = 74426217600. Its totient is φ = 74022178464.

The previous prime is 74224147391. The next prime is 74224147427. The reversal of 74224147397 is 79374142247.

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

It is a cyclic number.

It is not a de Polignac number, because 74224147397 - 2²⁶ = 74157038533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74224147391) 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, 1579718 + ... + 1626024.

It is an arithmetic number, because the mean of its divisors is an integer number (9303277200).

Almost surely, 2^74224147397 is an apocalyptic number.

It is an amenable number.

74224147397 is a deficient number, since it is larger than the sum of its proper divisors (202070203).

74224147397 is a wasteful number, since it uses less digits than its factorization.

74224147397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50635.

The product of its digits is 2370816, while the sum is 50.

The spelling of 74224147397 in words is "seventy-four billion, two hundred twenty-four million, one hundred forty-seven thousand, three hundred ninety-seven".