6198421579481 has 2 divisors, whose sum is σ = 6198421579482. Its totient is φ = 6198421579480.

The previous prime is 6198421579403. The next prime is 6198421579517. The reversal of 6198421579481 is 1849751248916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4289492489881 + 1908929089600 = 2071109^2 + 1381640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6198421579481 is a prime.

It is a super-2 number, since 2×6198421579481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6198421579381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099210789740 + 3099210789741.

It is an arithmetic number, because the mean of its divisors is an integer number (3099210789741).

Almost surely, 2^{6198421579481} is an apocalyptic number.

It is an amenable number.

6198421579481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6198421579481 is an equidigital number, since it uses as much as digits as its factorization.

6198421579481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 65.

The spelling of 6198421579481 in words is "six trillion, one hundred ninety-eight billion, four hundred twenty-one million, five hundred seventy-nine thousand, four hundred eighty-one".