494713882881 has 45 divisors (see below), whose sum is σ = 763928328339. Its totient is φ = 319043642400.

The previous prime is 494713882843. The next prime is 494713882891. The reversal of 494713882881 is 188288317494.

The square root of 494713882881 is 703359.

It is a perfect power (a square), and thus also a powerful number.

494713882881 is a `hidden beast` number, since 4 + 9 + 471 + 3 + 8 + 82 + 8 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 392396481 + 494321486400 = 19809^2 + 703080^2 .

It is not a de Polignac number, because 494713882881 - 2²⁹ = 494177011969 is a prime.

It is a super-2 number, since 2×494713882881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (494713882891) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 196235901 + ... + 196238421.

Almost surely, 2^494713882881 is an apocalyptic number.

494713882881 is the 703359-th square number.

494713882881 is the 351680-th centered octagonal number.

It is an amenable number.

494713882881 is a deficient number, since it is larger than the sum of its proper divisors (269214445458).

494713882881 is an frugal number, since it uses more digits than its factorization.

494713882881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116 (or 2555 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The spelling of 494713882881 in words is "four hundred ninety-four billion, seven hundred thirteen million, eight hundred eighty-two thousand, eight hundred eighty-one".