65197832873 has 2 divisors, whose sum is σ = 65197832874. Its totient is φ = 65197832872.

The previous prime is 65197832827. The next prime is 65197832933. The reversal of 65197832873 is 37823879156.

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., 56132507929 + 9065324944 = 236923^2 + 95212^2 .

It is a cyclic number.

It is not a de Polignac number, because 65197832873 - 2⁸ = 65197832617 is a prime.

It is a super-2 number, since 2×65197832873² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65197832803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32598916436 + 32598916437.

It is an arithmetic number, because the mean of its divisors is an integer number (32598916437).

Almost surely, 2^65197832873 is an apocalyptic number.

It is an amenable number.

65197832873 is a deficient number, since it is larger than the sum of its proper divisors (1).

65197832873 is an equidigital number, since it uses as much as digits as its factorization.

65197832873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The spelling of 65197832873 in words is "sixty-five billion, one hundred ninety-seven million, eight hundred thirty-two thousand, eight hundred seventy-three".