74320280243 has 8 divisors (see below), whose sum is σ = 85343862720. Its totient is φ = 64007896680.

The previous prime is 74320280233. The next prime is 74320280249. The reversal of 74320280243 is 34208202347.

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 74320280243 - 2⁴ = 74320280227 is a prime.

It is a super-2 number, since 2×74320280243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74320280249) 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, 177799505 + ... + 177799922.

It is an arithmetic number, because the mean of its divisors is an integer number (10667982840).

Almost surely, 2^74320280243 is an apocalyptic number.

74320280243 is a deficient number, since it is larger than the sum of its proper divisors (11023582477).

74320280243 is a wasteful number, since it uses less digits than its factorization.

74320280243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355599457.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 74320280243 in words is "seventy-four billion, three hundred twenty million, two hundred eighty thousand, two hundred forty-three".