33981490618 has 8 divisors (see below), whose sum is σ = 51200811648. Its totient is φ = 16914553404.

The previous prime is 33981490603. The next prime is 33981490639. The reversal of 33981490618 is 81609418933.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38095396 + ... + 38096287.

It is an arithmetic number, because the mean of its divisors is an integer number (6400101456).

Almost surely, 2^33981490618 is an apocalyptic number.

33981490618 is a deficient number, since it is larger than the sum of its proper divisors (17219321030).

33981490618 is a wasteful number, since it uses less digits than its factorization.

33981490618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76191908.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 33981490618 in words is "thirty-three billion, nine hundred eighty-one million, four hundred ninety thousand, six hundred eighteen".