86616820898 has 8 divisors (see below), whose sum is σ = 129926746092. Its totient is φ = 43307905536.

The previous prime is 86616820879. The next prime is 86616820903. The reversal of 86616820898 is 89802861668.

It can be written as a sum of positive squares in 2 ways, for example, as 82930752529 + 3686068369 = 287977^2 + 60713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86616820898.

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, 21386 + ... + 416762.

Almost surely, 2^86616820898 is an apocalyptic number.

86616820898 is a deficient number, since it is larger than the sum of its proper divisors (43309925194).

86616820898 is a wasteful number, since it uses less digits than its factorization.

86616820898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504916.

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 86616820898 in words is "eighty-six billion, six hundred sixteen million, eight hundred twenty thousand, eight hundred ninety-eight".