89787891898 has 8 divisors (see below), whose sum is σ = 135275150592. Its totient is φ = 44696175036.

The previous prime is 89787891811. The next prime is 89787891959. The reversal of 89787891898 is 89819878798.

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, 98884890 + ... + 98885797.

It is an arithmetic number, because the mean of its divisors is an integer number (16909393824).

Almost surely, 2^89787891898 is an apocalyptic number.

89787891898 is a deficient number, since it is larger than the sum of its proper divisors (45487258694).

89787891898 is a wasteful number, since it uses less digits than its factorization.

89787891898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197770916.

The product of its digits is 1170505728, while the sum is 82.

The spelling of 89787891898 in words is "eighty-nine billion, seven hundred eighty-seven million, eight hundred ninety-one thousand, eight hundred ninety-eight".