1638676096297 has 2 divisors, whose sum is σ = 1638676096298. Its totient is φ = 1638676096296.

The previous prime is 1638676096271. The next prime is 1638676096339. The reversal of 1638676096297 is 7926906768361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129535337616 + 509140758681 = 1062796^2 + 713541^2 .

It is a cyclic number.

It is not a de Polignac number, because 1638676096297 - 2³⁵ = 1604316357929 is a prime.

It is a super-2 number, since 2×1638676096297² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1638676096247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 819338048148 + 819338048149.

It is an arithmetic number, because the mean of its divisors is an integer number (819338048149).

Almost surely, 2^{1638676096297} is an apocalyptic number.

It is an amenable number.

1638676096297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1638676096297 is an equidigital number, since it uses as much as digits as its factorization.

1638676096297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246903552, while the sum is 70.

The spelling of 1638676096297 in words is "one trillion, six hundred thirty-eight billion, six hundred seventy-six million, ninety-six thousand, two hundred ninety-seven".