197375877626399 has 2 divisors, whose sum is σ = 197375877626400. Its totient is φ = 197375877626398.

The previous prime is 197375877626383. The next prime is 197375877626449. The reversal of 197375877626399 is 993626778573791.

It is a happy number.

197375877626399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197375877626399 - 2⁴ = 197375877626383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197375877626299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98687938813199 + 98687938813200.

It is an arithmetic number, because the mean of its divisors is an integer number (98687938813200).

Almost surely, 2^{197375877626399} is an apocalyptic number.

197375877626399 is a deficient number, since it is larger than the sum of its proper divisors (1).

197375877626399 is an equidigital number, since it uses as much as digits as its factorization.

197375877626399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45368527680, while the sum is 89.

The spelling of 197375877626399 in words is "one hundred ninety-seven trillion, three hundred seventy-five billion, eight hundred seventy-seven million, six hundred twenty-six thousand, three hundred ninety-nine".