16486322378791 has 2 divisors, whose sum is σ = 16486322378792. Its totient is φ = 16486322378790.

The previous prime is 16486322378783. The next prime is 16486322378803. The reversal of 16486322378791 is 19787322368461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16486322378791 - 2³ = 16486322378783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16486322372791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243161189395 + 8243161189396.

It is an arithmetic number, because the mean of its divisors is an integer number (8243161189396).

Almost surely, 2^{16486322378791} is an apocalyptic number.

16486322378791 is a deficient number, since it is larger than the sum of its proper divisors (1).

16486322378791 is an equidigital number, since it uses as much as digits as its factorization.

16486322378791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146313216, while the sum is 67.

The spelling of 16486322378791 in words is "sixteen trillion, four hundred eighty-six billion, three hundred twenty-two million, three hundred seventy-eight thousand, seven hundred ninety-one".