33198989398 has 4 divisors (see below), whose sum is σ = 49798484100. Its totient is φ = 16599494698.

The previous prime is 33198989339. The next prime is 33198989399. The reversal of 33198989398 is 89398989133.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×33198989398² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33198989399) 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 as a sum of consecutive naturals, namely, 8299747348 + ... + 8299747351.

It is an arithmetic number, because the mean of its divisors is an integer number (12449621025).

Almost surely, 2^33198989398 is an apocalyptic number.

33198989398 is a deficient number, since it is larger than the sum of its proper divisors (16599494702).

33198989398 is a wasteful number, since it uses less digits than its factorization.

33198989398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16599494701.

The product of its digits is 90699264, while the sum is 70.

The spelling of 33198989398 in words is "thirty-three billion, one hundred ninety-eight million, nine hundred eighty-nine thousand, three hundred ninety-eight".