338993492819 has 2 divisors, whose sum is σ = 338993492820. Its totient is φ = 338993492818.

The previous prime is 338993492807. The next prime is 338993492863. The reversal of 338993492819 is 918294399833.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 338993492819 - 2¹² = 338993488723 is a prime.

It is a super-2 number, since 2×338993492819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338993492879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169496746409 + 169496746410.

It is an arithmetic number, because the mean of its divisors is an integer number (169496746410).

Almost surely, 2^338993492819 is an apocalyptic number.

338993492819 is a deficient number, since it is larger than the sum of its proper divisors (1).

338993492819 is an equidigital number, since it uses as much as digits as its factorization.

338993492819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90699264, while the sum is 68.

The spelling of 338993492819 in words is "three hundred thirty-eight billion, nine hundred ninety-three million, four hundred ninety-two thousand, eight hundred nineteen".