89018949808 has 20 divisors (see below), whose sum is σ = 173790816408. Its totient is φ = 44169706880.

The previous prime is 89018949793. The next prime is 89018949809. The reversal of 89018949808 is 80894981098.

It is a self number, because there is not a number n which added to its sum of digits gives 89018949808.

It is not an unprimeable number, because it can be changed into a prime (89018949809) 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 3 ways as a sum of consecutive naturals, for example, 21233341 + ... + 21237532.

Almost surely, 2^89018949808 is an apocalyptic number.

It is an amenable number.

89018949808 is a deficient number, since it is larger than the sum of its proper divisors (84771866600).

89018949808 is a wasteful number, since it uses less digits than its factorization.

89018949808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42471012 (or 42471006 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 64.

The spelling of 89018949808 in words is "eighty-nine billion, eighteen million, nine hundred forty-nine thousand, eight hundred eight".