891467969764198 has 16 divisors (see below), whose sum is σ = 1338794873713440. Its totient is φ = 445203037183936.

The previous prime is 891467969764193. The next prime is 891467969764247.

891467969764198 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×891467969764198² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891467969764193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64329063 + ... + 76949101.

It is an arithmetic number, because the mean of its divisors is an integer number (83674679607090).

Almost surely, 2^{891467969764198} is an apocalyptic number.

891467969764198 is a deficient number, since it is larger than the sum of its proper divisors (447326903949242).

891467969764198 is a wasteful number, since it uses less digits than its factorization.

891467969764198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12662111.

The product of its digits is 71108222976, while the sum is 94.

The spelling of 891467969764198 in words is "eight hundred ninety-one trillion, four hundred sixty-seven billion, nine hundred sixty-nine million, seven hundred sixty-four thousand, one hundred ninety-eight".