335640448393 has 2 divisors, whose sum is σ = 335640448394. Its totient is φ = 335640448392.

The previous prime is 335640448369. The next prime is 335640448453. The reversal of 335640448393 is 393844046533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246405017664 + 89235430729 = 496392^2 + 298723^2 .

It is a cyclic number.

It is not a de Polignac number, because 335640448393 - 2⁵ = 335640448361 is a prime.

It is a super-2 number, since 2×335640448393² (a number of 24 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 335640448393.

It is not a weakly prime, because it can be changed into another prime (335640448313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167820224196 + 167820224197.

It is an arithmetic number, because the mean of its divisors is an integer number (167820224197).

Almost surely, 2^335640448393 is an apocalyptic number.

It is an amenable number.

335640448393 is a deficient number, since it is larger than the sum of its proper divisors (1).

335640448393 is an equidigital number, since it uses as much as digits as its factorization.

335640448393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 335640448393 in words is "three hundred thirty-five billion, six hundred forty million, four hundred forty-eight thousand, three hundred ninety-three".