74221633427 has 2 divisors, whose sum is σ = 74221633428. Its totient is φ = 74221633426.

The previous prime is 74221633403. The next prime is 74221633481. The reversal of 74221633427 is 72433612247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74221633427 - 2¹⁰ = 74221632403 is a prime.

It is not a weakly prime, because it can be changed into another prime (74221635427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37110816713 + 37110816714.

It is an arithmetic number, because the mean of its divisors is an integer number (37110816714).

Almost surely, 2^74221633427 is an apocalyptic number.

74221633427 is a deficient number, since it is larger than the sum of its proper divisors (1).

74221633427 is an equidigital number, since it uses as much as digits as its factorization.

74221633427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 41.

The spelling of 74221633427 in words is "seventy-four billion, two hundred twenty-one million, six hundred thirty-three thousand, four hundred twenty-seven".