74889097989698 has 32 divisors (see below), whose sum is σ = 118756179743040. Its totient is φ = 35320805784000.

The previous prime is 74889097989661. The next prime is 74889097989731. The reversal of 74889097989698 is 89698979098847.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74889097989598 and 74889097989607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27674240 + ... + 30259572.

It is an arithmetic number, because the mean of its divisors is an integer number (3711130616970).

Almost surely, 2^{74889097989698} is an apocalyptic number.

74889097989698 is a deficient number, since it is larger than the sum of its proper divisors (43867081753342).

74889097989698 is a wasteful number, since it uses less digits than its factorization.

74889097989698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588642.

The product of its (nonzero) digits is 284432891904, while the sum is 101.

The spelling of 74889097989698 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-seven million, nine hundred eighty-nine thousand, six hundred ninety-eight".