74350900243 has 4 divisors (see below), whose sum is σ = 75460615240. Its totient is φ = 73241185248.

The previous prime is 74350900223. The next prime is 74350900271. The reversal of 74350900243 is 34200905347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34200905347 = 7 ⋅4885843621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74350900243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74350900223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554857398 + ... + 554857531.

It is an arithmetic number, because the mean of its divisors is an integer number (18865153810).

Almost surely, 2^74350900243 is an apocalyptic number.

74350900243 is a deficient number, since it is larger than the sum of its proper divisors (1109714997).

74350900243 is a wasteful number, since it uses less digits than its factorization.

74350900243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109714996.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 74350900243 in words is "seventy-four billion, three hundred fifty million, nine hundred thousand, two hundred forty-three".