74889097989863 has 2 divisors, whose sum is σ = 74889097989864. Its totient is φ = 74889097989862.

The previous prime is 74889097989829. The next prime is 74889097989889. The reversal of 74889097989863 is 36898979098847.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36898979098847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74889097989863 - 2⁶ = 74889097989799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74889097989803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37444548994931 + 37444548994932.

It is an arithmetic number, because the mean of its divisors is an integer number (37444548994932).

Almost surely, 2^{74889097989863} is an apocalyptic number.

74889097989863 is a deficient number, since it is larger than the sum of its proper divisors (1).

74889097989863 is an equidigital number, since it uses as much as digits as its factorization.

74889097989863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94810963968, while the sum is 95.

The spelling of 74889097989863 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-seven million, nine hundred eighty-nine thousand, eight hundred sixty-three".