89909153618 has 16 divisors (see below), whose sum is σ = 144014664960. Its totient is φ = 42004275600.

The previous prime is 89909153599. The next prime is 89909153629. The reversal of 89909153618 is 81635190998.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25000748 + ... + 25004343.

It is an arithmetic number, because the mean of its divisors is an integer number (9000916560).

Almost surely, 2^89909153618 is an apocalyptic number.

89909153618 is a deficient number, since it is larger than the sum of its proper divisors (54105511342).

89909153618 is a wasteful number, since it uses less digits than its factorization.

89909153618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50005153.

The product of its (nonzero) digits is 4199040, while the sum is 59.

The spelling of 89909153618 in words is "eighty-nine billion, nine hundred nine million, one hundred fifty-three thousand, six hundred eighteen".