608993647579819 has 2 divisors, whose sum is σ = 608993647579820. Its totient is φ = 608993647579818.

The previous prime is 608993647579729. The next prime is 608993647579831. The reversal of 608993647579819 is 918975746399806.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 608993647579819 - 2²¹ = 608993645482667 is a prime.

It is a super-3 number, since 3×608993647579819³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (608993647579859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304496823789909 + 304496823789910.

It is an arithmetic number, because the mean of its divisors is an integer number (304496823789910).

Almost surely, 2^{608993647579819} is an apocalyptic number.

608993647579819 is a deficient number, since it is larger than the sum of its proper divisors (1).

608993647579819 is an equidigital number, since it uses as much as digits as its factorization.

608993647579819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44442639360, while the sum is 91.

The spelling of 608993647579819 in words is "six hundred eight trillion, nine hundred ninety-three billion, six hundred forty-seven million, five hundred seventy-nine thousand, eight hundred nineteen".