74398981033 has 24 divisors (see below), whose sum is σ = 85641839136. Its totient is φ = 64378080000.

The previous prime is 74398981003. The next prime is 74398981039. The reversal of 74398981033 is 33018989347.

It is a happy number.

It is not a de Polignac number, because 74398981033 - 2⁵ = 74398981001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74398981039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 669538 + ... + 772708.

It is an arithmetic number, because the mean of its divisors is an integer number (3568409964).

Almost surely, 2^74398981033 is an apocalyptic number.

It is an amenable number.

74398981033 is a deficient number, since it is larger than the sum of its proper divisors (11242858103).

74398981033 is a wasteful number, since it uses less digits than its factorization.

74398981033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103465 (or 103452 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 74398981033 in words is "seventy-four billion, three hundred ninety-eight million, nine hundred eighty-one thousand, thirty-three".