87133939618 has 32 divisors (see below), whose sum is σ = 150108215040. Its totient is φ = 37516530960.

The previous prime is 87133939591. The next prime is 87133939649. The reversal of 87133939618 is 81693933178.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5152605 + ... + 5169487.

It is an arithmetic number, because the mean of its divisors is an integer number (4690881720).

Almost surely, 2^87133939618 is an apocalyptic number.

87133939618 is a deficient number, since it is larger than the sum of its proper divisors (62974275422).

87133939618 is a wasteful number, since it uses less digits than its factorization.

87133939618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29262.

The product of its digits is 5878656, while the sum is 58.

The spelling of 87133939618 in words is "eighty-seven billion, one hundred thirty-three million, nine hundred thirty-nine thousand, six hundred eighteen".