538620945408019 has 2 divisors, whose sum is σ = 538620945408020. Its totient is φ = 538620945408018.

The previous prime is 538620945407989. The next prime is 538620945408059. The reversal of 538620945408019 is 910804549026835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538620945408019 - 2²¹ = 538620943310867 is a prime.

It is a super-2 number, since 2×538620945408019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (538620945408059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269310472704009 + 269310472704010.

It is an arithmetic number, because the mean of its divisors is an integer number (269310472704010).

Almost surely, 2^{538620945408019} is an apocalyptic number.

538620945408019 is a deficient number, since it is larger than the sum of its proper divisors (1).

538620945408019 is an equidigital number, since it uses as much as digits as its factorization.

538620945408019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74649600, while the sum is 64.

The spelling of 538620945408019 in words is "five hundred thirty-eight trillion, six hundred twenty billion, nine hundred forty-five million, four hundred eight thousand, nineteen".