2697217054381 has 2 divisors, whose sum is σ = 2697217054382. Its totient is φ = 2697217054380.

The previous prime is 2697217054373. The next prime is 2697217054459. The reversal of 2697217054381 is 1834507127962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2317902721156 + 379314333225 = 1522466^2 + 615885^2 .

It is a cyclic number.

It is not a de Polignac number, because 2697217054381 - 2³ = 2697217054373 is a prime.

It is a super-2 number, since 2×2697217054381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2697217054321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1348608527190 + 1348608527191.

It is an arithmetic number, because the mean of its divisors is an integer number (1348608527191).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2697217054381 = 5394434108762, but 3⋅2697217054381 = 8091651163143 is not.

Almost surely, 2^{2697217054381} is an apocalyptic number.

It is an amenable number.

2697217054381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2697217054381 is an equidigital number, since it uses as much as digits as its factorization.

2697217054381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 2697217054381 in words is "two trillion, six hundred ninety-seven billion, two hundred seventeen million, fifty-four thousand, three hundred eighty-one".