89681688986 has 16 divisors (see below), whose sum is σ = 146485519200. Its totient is φ = 41015944368.

The previous prime is 89681688961. The next prime is 89681688997. The reversal of 89681688986 is 68988618698.

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, 40689320 + ... + 40691523.

It is an arithmetic number, because the mean of its divisors is an integer number (9155344950).

Almost surely, 2^89681688986 is an apocalyptic number.

89681688986 is a deficient number, since it is larger than the sum of its proper divisors (56803830214).

89681688986 is a wasteful number, since it uses less digits than its factorization.

89681688986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81380893.

The product of its digits is 573308928, while the sum is 77.

The spelling of 89681688986 in words is "eighty-nine billion, six hundred eighty-one million, six hundred eighty-eight thousand, nine hundred eighty-six".