494013781013 has 8 divisors (see below), whose sum is σ = 494342011800. Its totient is φ = 493685660160.

The previous prime is 494013780991. The next prime is 494013781039. The reversal of 494013781013 is 310187310494.

It can be written as a sum of positive squares in 4 ways, for example, as 735114769 + 493278666244 = 27113^2 + 702338^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494013781013 - 2¹⁶ = 494013715477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494013787013) 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, 10183331 + ... + 10231727.

It is an arithmetic number, because the mean of its divisors is an integer number (61792751475).

Almost surely, 2^494013781013 is an apocalyptic number.

It is an amenable number.

494013781013 is a deficient number, since it is larger than the sum of its proper divisors (328230787).

494013781013 is a wasteful number, since it uses less digits than its factorization.

494013781013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54967.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 494013781013 in words is "four hundred ninety-four billion, thirteen million, seven hundred eighty-one thousand, thirteen".