409782144791 has 2 divisors, whose sum is σ = 409782144792. Its totient is φ = 409782144790.

The previous prime is 409782144769. The next prime is 409782144817. The reversal of 409782144791 is 197441287904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409782144791 - 2⁶ = 409782144727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409782144091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204891072395 + 204891072396.

It is an arithmetic number, because the mean of its divisors is an integer number (204891072396).

Almost surely, 2^409782144791 is an apocalyptic number.

409782144791 is a deficient number, since it is larger than the sum of its proper divisors (1).

409782144791 is an equidigital number, since it uses as much as digits as its factorization.

409782144791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 409782144791 in words is "four hundred nine billion, seven hundred eighty-two million, one hundred forty-four thousand, seven hundred ninety-one".