16542912892889 has 2 divisors, whose sum is σ = 16542912892890. Its totient is φ = 16542912892888.

The previous prime is 16542912892871. The next prime is 16542912892897. The reversal of 16542912892889 is 98829821924561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14208715608025 + 2334197284864 = 3769445^2 + 1527808^2 .

It is a cyclic number.

It is not a de Polignac number, because 16542912892889 - 2⁸ = 16542912892633 is a prime.

It is not a weakly prime, because it can be changed into another prime (16542912892859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8271456446444 + 8271456446445.

It is an arithmetic number, because the mean of its divisors is an integer number (8271456446445).

Almost surely, 2^{16542912892889} is an apocalyptic number.

It is an amenable number.

16542912892889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16542912892889 is an equidigital number, since it uses as much as digits as its factorization.

16542912892889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 358318080, while the sum is 74.

The spelling of 16542912892889 in words is "sixteen trillion, five hundred forty-two billion, nine hundred twelve million, eight hundred ninety-two thousand, eight hundred eighty-nine".