891545054167 has 2 divisors, whose sum is σ = 891545054168. Its totient is φ = 891545054166.

The previous prime is 891545054093. The next prime is 891545054171. The reversal of 891545054167 is 761450545198.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 891545054167 - 2²³ = 891536665559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (891545054177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445772527083 + 445772527084.

It is an arithmetic number, because the mean of its divisors is an integer number (445772527084).

Almost surely, 2^891545054167 is an apocalyptic number.

891545054167 is a deficient number, since it is larger than the sum of its proper divisors (1).

891545054167 is an equidigital number, since it uses as much as digits as its factorization.

891545054167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 891545054167 in words is "eight hundred ninety-one billion, five hundred forty-five million, fifty-four thousand, one hundred sixty-seven".