798147561019 has 2 divisors, whose sum is σ = 798147561020. Its totient is φ = 798147561018.

The previous prime is 798147560971. The next prime is 798147561031. The reversal of 798147561019 is 910165741897.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798147561019 is a prime.

It is a super-2 number, since 2×798147561019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (798147511019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399073780509 + 399073780510.

It is an arithmetic number, because the mean of its divisors is an integer number (399073780510).

Almost surely, 2^798147561019 is an apocalyptic number.

798147561019 is a deficient number, since it is larger than the sum of its proper divisors (1).

798147561019 is an equidigital number, since it uses as much as digits as its factorization.

798147561019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 58.

The spelling of 798147561019 in words is "seven hundred ninety-eight billion, one hundred forty-seven million, five hundred sixty-one thousand, nineteen".