7198755410881 has 2 divisors, whose sum is σ = 7198755410882. Its totient is φ = 7198755410880.

The previous prime is 7198755410867. The next prime is 7198755410963. The reversal of 7198755410881 is 1880145578917.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6848479641600 + 350275769281 = 2616960^2 + 591841^2 .

It is an emirp because it is prime and its reverse (1880145578917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7198755410881 - 2¹¹ = 7198755408833 is a prime.

It is a super-2 number, since 2×7198755410881² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7198755410681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3599377705440 + 3599377705441.

It is an arithmetic number, because the mean of its divisors is an integer number (3599377705441).

Almost surely, 2^{7198755410881} is an apocalyptic number.

It is an amenable number.

7198755410881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7198755410881 is an equidigital number, since it uses as much as digits as its factorization.

7198755410881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22579200, while the sum is 64.

The spelling of 7198755410881 in words is "seven trillion, one hundred ninety-eight billion, seven hundred fifty-five million, four hundred ten thousand, eight hundred eighty-one".