198481070365619 has 2 divisors, whose sum is σ = 198481070365620. Its totient is φ = 198481070365618.

The previous prime is 198481070365549. The next prime is 198481070365663. The reversal of 198481070365619 is 916563070184891.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (916563070184891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198481070365619 - 2¹² = 198481070361523 is a prime.

It is a super-2 number, since 2×198481070365619² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (198481070365819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99240535182809 + 99240535182810.

It is an arithmetic number, because the mean of its divisors is an integer number (99240535182810).

Almost surely, 2^{198481070365619} is an apocalyptic number.

198481070365619 is a deficient number, since it is larger than the sum of its proper divisors (1).

198481070365619 is an equidigital number, since it uses as much as digits as its factorization.

198481070365619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 198481070365619 in words is "one hundred ninety-eight trillion, four hundred eighty-one billion, seventy million, three hundred sixty-five thousand, six hundred nineteen".