899857504198 has 16 divisors (see below), whose sum is σ = 1369395537696. Its totient is φ = 443402406720.

The previous prime is 899857504163. The next prime is 899857504211. The reversal of 899857504198 is 891405758998.

It is a super-2 number, since 2×899857504198² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a self number, because there is not a number n which added to its sum of digits gives 899857504198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341233 + ... + 2698348.

It is an arithmetic number, because the mean of its divisors is an integer number (85587221106).

Almost surely, 2^899857504198 is an apocalyptic number.

899857504198 is a deficient number, since it is larger than the sum of its proper divisors (469538033498).

899857504198 is a wasteful number, since it uses less digits than its factorization.

899857504198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040879.

The product of its (nonzero) digits is 261273600, while the sum is 73.

The spelling of 899857504198 in words is "eight hundred ninety-nine billion, eight hundred fifty-seven million, five hundred four thousand, one hundred ninety-eight".