494949393949331 has 2 divisors, whose sum is σ = 494949393949332. Its totient is φ = 494949393949330.

The previous prime is 494949393949313. The next prime is 494949393949337. The reversal of 494949393949331 is 133949393949494.

Together with previous prime (494949393949313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 494949393949331 - 2³⁸ = 494674516042387 is a prime.

It is a super-2 number, since 2×494949393949331² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 494949393949331.

It is not a weakly prime, because it can be changed into another prime (494949393949337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247474696974665 + 247474696974666.

It is an arithmetic number, because the mean of its divisors is an integer number (247474696974666).

Almost surely, 2^{494949393949331} is an apocalyptic number.

494949393949331 is a deficient number, since it is larger than the sum of its proper divisors (1).

494949393949331 is an equidigital number, since it uses as much as digits as its factorization.

494949393949331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11019960576, while the sum is 83.

The spelling of 494949393949331 in words is "four hundred ninety-four trillion, nine hundred forty-nine billion, three hundred ninety-three million, nine hundred forty-nine thousand, three hundred thirty-one".