74438217683 has 2 divisors, whose sum is σ = 74438217684. Its totient is φ = 74438217682.

The previous prime is 74438217661. The next prime is 74438217691. The reversal of 74438217683 is 38671283447.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74438217683 - 2⁶ = 74438217619 is a prime.

It is not a weakly prime, because it can be changed into another prime (74438217653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37219108841 + 37219108842.

It is an arithmetic number, because the mean of its divisors is an integer number (37219108842).

Almost surely, 2^74438217683 is an apocalyptic number.

74438217683 is a deficient number, since it is larger than the sum of its proper divisors (1).

74438217683 is an equidigital number, since it uses as much as digits as its factorization.

74438217683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 53.

The spelling of 74438217683 in words is "seventy-four billion, four hundred thirty-eight million, two hundred seventeen thousand, six hundred eighty-three".