74642218999 has 2 divisors, whose sum is σ = 74642219000. Its totient is φ = 74642218998.

The previous prime is 74642218901. The next prime is 74642219053. The reversal of 74642218999 is 99981224647.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74642218999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74642212999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37321109499 + 37321109500.

It is an arithmetic number, because the mean of its divisors is an integer number (37321109500).

Almost surely, 2^74642218999 is an apocalyptic number.

74642218999 is a deficient number, since it is larger than the sum of its proper divisors (1).

74642218999 is an equidigital number, since it uses as much as digits as its factorization.

74642218999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 61.

The spelling of 74642218999 in words is "seventy-four billion, six hundred forty-two million, two hundred eighteen thousand, nine hundred ninety-nine".