494836531636 has 6 divisors (see below), whose sum is σ = 865963930370. Its totient is φ = 247418265816.

The previous prime is 494836531619. The next prime is 494836531643. The reversal of 494836531636 is 636135638494.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 289949940900 + 204886590736 = 538470^2 + 452644^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61854566451 + ... + 61854566458.

Almost surely, 2^494836531636 is an apocalyptic number.

It is an amenable number.

494836531636 is a deficient number, since it is larger than the sum of its proper divisors (371127398734).

494836531636 is a wasteful number, since it uses less digits than its factorization.

494836531636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123709132913 (or 123709132911 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 58.

The spelling of 494836531636 in words is "four hundred ninety-four billion, eight hundred thirty-six million, five hundred thirty-one thousand, six hundred thirty-six".