85866698898 has 24 divisors (see below), whose sum is σ = 195836331600. Its totient is φ = 27115799544.

The previous prime is 85866698887. The next prime is 85866698963. The reversal of 85866698898 is 89889666858.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125535768 + ... + 125536451.

It is an arithmetic number, because the mean of its divisors is an integer number (8159847150).

Almost surely, 2^85866698898 is an apocalyptic number.

85866698898 is an abundant number, since it is smaller than the sum of its proper divisors (109969632702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85866698898 is a wasteful number, since it uses less digits than its factorization.

85866698898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251072246 (or 251072243 counting only the distinct ones).

The product of its digits is 2866544640, while the sum is 81.

The spelling of 85866698898 in words is "eighty-five billion, eight hundred sixty-six million, six hundred ninety-eight thousand, eight hundred ninety-eight".