20860286116349 has 2 divisors, whose sum is σ = 20860286116350. Its totient is φ = 20860286116348.

The previous prime is 20860286116333. The next prime is 20860286116393. The reversal of 20860286116349 is 94361168206802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14714934360025 + 6145351756324 = 3836005^2 + 2478982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20860286116349 - 2⁴ = 20860286116333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20860286116294 and 20860286116303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20860286116049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10430143058174 + 10430143058175.

It is an arithmetic number, because the mean of its divisors is an integer number (10430143058175).

Almost surely, 2^{20860286116349} is an apocalyptic number.

It is an amenable number.

20860286116349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20860286116349 is an equidigital number, since it uses as much as digits as its factorization.

20860286116349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 20860286116349 in words is "twenty trillion, eight hundred sixty billion, two hundred eighty-six million, one hundred sixteen thousand, three hundred forty-nine".