899145541998 has 24 divisors (see below), whose sum is σ = 2125253099736. Its totient is φ = 272468346000.

The previous prime is 899145541969. The next prime is 899145542003.

It is a happy number.

899145541998 is a `hidden beast` number, since 89 + 9 + 1 + 45 + 5 + 419 + 98 = 666.

899145541998 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2270569353 + ... + 2270569748.

It is an arithmetic number, because the mean of its divisors is an integer number (88552212489).

Almost surely, 2^899145541998 is an apocalyptic number.

899145541998 is an abundant number, since it is smaller than the sum of its proper divisors (1226107557738).

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

899145541998 is a wasteful number, since it uses less digits than its factorization.

899145541998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541139120 (or 4541139117 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 72.

The spelling of 899145541998 in words is "eight hundred ninety-nine billion, one hundred forty-five million, five hundred forty-one thousand, nine hundred ninety-eight".