2105654642363 has 2 divisors, whose sum is σ = 2105654642364. Its totient is φ = 2105654642362.

The previous prime is 2105654642353. The next prime is 2105654642387. The reversal of 2105654642363 is 3632464565012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105654642363 - 2⁴ = 2105654642347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2105654642353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052827321181 + 1052827321182.

It is an arithmetic number, because the mean of its divisors is an integer number (1052827321182).

Almost surely, 2^{2105654642363} is an apocalyptic number.

2105654642363 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105654642363 is an equidigital number, since it uses as much as digits as its factorization.

2105654642363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 2105654642363 in words is "two trillion, one hundred five billion, six hundred fifty-four million, six hundred forty-two thousand, three hundred sixty-three".