493881981790 has 16 divisors (see below), whose sum is σ = 913014258912. Its totient is φ = 192213527904.

The previous prime is 493881981767. The next prime is 493881981797. The reversal of 493881981790 is 97189188394.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493881981797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667407714 + ... + 667408453.

It is an arithmetic number, because the mean of its divisors is an integer number (57063391182).

Almost surely, 2^493881981790 is an apocalyptic number.

493881981790 is a deficient number, since it is larger than the sum of its proper divisors (419132277122).

493881981790 is a wasteful number, since it uses less digits than its factorization.

493881981790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334816211.

The product of its (nonzero) digits is 31352832, while the sum is 67.

The spelling of 493881981790 in words is "four hundred ninety-three billion, eight hundred eighty-one million, nine hundred eighty-one thousand, seven hundred ninety".