2097792634981 has 2 divisors, whose sum is σ = 2097792634982. Its totient is φ = 2097792634980.

The previous prime is 2097792634979. The next prime is 2097792635093. The reversal of 2097792634981 is 1894362977902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2095065184356 + 2727450625 = 1447434^2 + 52225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2097792634981 - 2¹ = 2097792634979 is a prime.

It is a super-2 number, since 2×2097792634981² (a number of 25 digits) contains 22 as substring.

Together with 2097792634979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097792634921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048896317490 + 1048896317491.

It is an arithmetic number, because the mean of its divisors is an integer number (1048896317491).

Almost surely, 2^{2097792634981} is an apocalyptic number.

It is an amenable number.

2097792634981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097792634981 is an equidigital number, since it uses as much as digits as its factorization.

2097792634981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 2097792634981 in words is "two trillion, ninety-seven billion, seven hundred ninety-two million, six hundred thirty-four thousand, nine hundred eighty-one".