338498364493 has 2 divisors, whose sum is σ = 338498364494. Its totient is φ = 338498364492.

The previous prime is 338498364461. The next prime is 338498364559. The reversal of 338498364493 is 394463894833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176768111844 + 161730252649 = 420438^2 + 402157^2 .

It is a cyclic number.

It is not a de Polignac number, because 338498364493 - 2⁵ = 338498364461 is a prime.

It is a super-2 number, since 2×338498364493² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338498364793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169249182246 + 169249182247.

It is an arithmetic number, because the mean of its divisors is an integer number (169249182247).

Almost surely, 2^338498364493 is an apocalyptic number.

It is an amenable number.

338498364493 is a deficient number, since it is larger than the sum of its proper divisors (1).

338498364493 is an equidigital number, since it uses as much as digits as its factorization.

338498364493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 64.

The spelling of 338498364493 in words is "three hundred thirty-eight billion, four hundred ninety-eight million, three hundred sixty-four thousand, four hundred ninety-three".