197927133793 has 2 divisors, whose sum is σ = 197927133794. Its totient is φ = 197927133792.

The previous prime is 197927133763. The next prime is 197927133827. The reversal of 197927133793 is 397331729791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197911986129 + 15147664 = 444873^2 + 3892^2 .

It is an emirp because it is prime and its reverse (397331729791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197927133793 - 2⁹ = 197927133281 is a prime.

It is not a weakly prime, because it can be changed into another prime (197927133763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98963566896 + 98963566897.

It is an arithmetic number, because the mean of its divisors is an integer number (98963566897).

Almost surely, 2^197927133793 is an apocalyptic number.

It is an amenable number.

197927133793 is a deficient number, since it is larger than the sum of its proper divisors (1).

197927133793 is an equidigital number, since it uses as much as digits as its factorization.

197927133793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13502538, while the sum is 61.

The spelling of 197927133793 in words is "one hundred ninety-seven billion, nine hundred twenty-seven million, one hundred thirty-three thousand, seven hundred ninety-three".