891449944198 has 32 divisors (see below), whose sum is σ = 1522523008512. Its totient is φ = 387494395200.

The previous prime is 891449944117. The next prime is 891449944201.

891449944198 is nontrivially palindromic in base 10.

891449944198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1932690 + ... + 2349082.

It is an arithmetic number, because the mean of its divisors is an integer number (47578844016).

Almost surely, 2^891449944198 is an apocalyptic number.

891449944198 is a deficient number, since it is larger than the sum of its proper divisors (631073064314).

891449944198 is a wasteful number, since it uses less digits than its factorization.

891449944198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420660.

The product of its digits is 107495424, while the sum is 70.

The spelling of 891449944198 in words is "eight hundred ninety-one billion, four hundred forty-nine million, nine hundred forty-four thousand, one hundred ninety-eight".