2129789574697 has 2 divisors, whose sum is σ = 2129789574698. Its totient is φ = 2129789574696.

The previous prime is 2129789574683. The next prime is 2129789574701. The reversal of 2129789574697 is 7964759879212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2129787065641 + 2509056 = 1459379^2 + 1584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2129789574697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2129789574607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064894787348 + 1064894787349.

It is an arithmetic number, because the mean of its divisors is an integer number (1064894787349).

Almost surely, 2^{2129789574697} is an apocalyptic number.

It is an amenable number.

2129789574697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129789574697 is an equidigital number, since it uses as much as digits as its factorization.

2129789574697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960180480, while the sum is 76.

The spelling of 2129789574697 in words is "two trillion, one hundred twenty-nine billion, seven hundred eighty-nine million, five hundred seventy-four thousand, six hundred ninety-seven".