494138651785 has 16 divisors (see below), whose sum is σ = 600660345600. Its totient is φ = 390203122176.

The previous prime is 494138651767. The next prime is 494138651813. The reversal of 494138651785 is 587156831494.

It is a cyclic number.

It is not a de Polignac number, because 494138651785 - 2⁵ = 494138651753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160305 + ... + 1527934.

It is an arithmetic number, because the mean of its divisors is an integer number (37541271600).

Almost surely, 2^494138651785 is an apocalyptic number.

It is an amenable number.

494138651785 is a deficient number, since it is larger than the sum of its proper divisors (106521693815).

494138651785 is a wasteful number, since it uses less digits than its factorization.

494138651785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688720.

The product of its digits is 29030400, while the sum is 61.

The spelling of 494138651785 in words is "four hundred ninety-four billion, one hundred thirty-eight million, six hundred fifty-one thousand, seven hundred eighty-five".