493881981767 has 2 divisors, whose sum is σ = 493881981768. Its totient is φ = 493881981766.

The previous prime is 493881981763. The next prime is 493881981797. The reversal of 493881981767 is 767189188394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493881981767 - 2² = 493881981763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 493881981767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493881981763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246940990883 + 246940990884.

It is an arithmetic number, because the mean of its divisors is an integer number (246940990884).

Almost surely, 2^493881981767 is an apocalyptic number.

493881981767 is a deficient number, since it is larger than the sum of its proper divisors (1).

493881981767 is an equidigital number, since it uses as much as digits as its factorization.

493881981767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146313216, while the sum is 71.

The spelling of 493881981767 in words is "four hundred ninety-three billion, eight hundred eighty-one million, nine hundred eighty-one thousand, seven hundred sixty-seven".