74224642247 has 4 divisors (see below), whose sum is σ = 84828162576. Its totient is φ = 63621121920.

The previous prime is 74224642237. The next prime is 74224642273.

74224642247 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74224642247 - 2⁶ = 74224642183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74224642198 and 74224642207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74224642237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301760154 + ... + 5301760167.

It is an arithmetic number, because the mean of its divisors is an integer number (21207040644).

Almost surely, 2^74224642247 is an apocalyptic number.

74224642247 is a deficient number, since it is larger than the sum of its proper divisors (10603520329).

74224642247 is a wasteful number, since it uses less digits than its factorization.

74224642247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10603520328.

The product of its digits is 1204224, while the sum is 44.

The spelling of 74224642247 in words is "seventy-four billion, two hundred twenty-four million, six hundred forty-two thousand, two hundred forty-seven".