74322372321 has 12 divisors (see below), whose sum is σ = 107359092880. Its totient is φ = 49546145880.

The previous prime is 74322372263. The next prime is 74322372329. The reversal of 74322372321 is 12327322347.

74322372321 is a `hidden beast` number, since 7 + 4 + 322 + 3 + 7 + 2 + 321 = 666.

It is not a de Polignac number, because 74322372321 - 2⁷ = 74322372193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74322372329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66210 + ... + 391188.

Almost surely, 2^74322372321 is an apocalyptic number.

It is an amenable number.

74322372321 is a deficient number, since it is larger than the sum of its proper divisors (33036720559).

74322372321 is a wasteful number, since it uses less digits than its factorization.

74322372321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350396 (or 350393 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

Adding to 74322372321 its reverse (12327322347), we get a palindrome (86649694668).

The spelling of 74322372321 in words is "seventy-four billion, three hundred twenty-two million, three hundred seventy-two thousand, three hundred twenty-one".