494075319138 has 28 divisors (see below), whose sum is σ = 1111161163398. Its totient is φ = 164691772560.

The previous prime is 494075319121. The next prime is 494075319253. The reversal of 494075319138 is 831913570494.

494075319138 is a `hidden beast` number, since 4 + 94 + 0 + 7 + 531 + 9 + 13 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 342930873609 + 151144445529 = 585603^2 + 388773^2 .

It is a super-2 number, since 2×494075319138² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 169434523 + ... + 169437438.

Almost surely, 2^494075319138 is an apocalyptic number.

494075319138 is an abundant number, since it is smaller than the sum of its proper divisors (617085844260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494075319138 is an equidigital number, since it uses as much as digits as its factorization.

494075319138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338871981 (or 338871966 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 494075319138 in words is "four hundred ninety-four billion, seventy-five million, three hundred nineteen thousand, one hundred thirty-eight".