1198753455377 has 2 divisors, whose sum is σ = 1198753455378. Its totient is φ = 1198753455376.

The previous prime is 1198753455353. The next prime is 1198753455379. The reversal of 1198753455377 is 7735543578911.

It is a Cunningham number, because it is equal to 1094876²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1198753455376 + 1 = 1094876^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198753455377 - 2⁸ = 1198753455121 is a prime.

Together with 1198753455379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1198753455379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599376727688 + 599376727689.

It is an arithmetic number, because the mean of its divisors is an integer number (599376727689).

Almost surely, 2^{1198753455377} is an apocalyptic number.

It is an amenable number.

1198753455377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198753455377 is an equidigital number, since it uses as much as digits as its factorization.

1198753455377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132000, while the sum is 65.

The spelling of 1198753455377 in words is "one trillion, one hundred ninety-eight billion, seven hundred fifty-three million, four hundred fifty-five thousand, three hundred seventy-seven".