2116486481 has 2 divisors, whose sum is σ = 2116486482. Its totient is φ = 2116486480.

The previous prime is 2116486447. The next prime is 2116486523. The reversal of 2116486481 is 1846846112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2077536400 + 38950081 = 45580^2 + 6241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116486481 is a prime.

It is a super-2 number, since 2×2116486481² = 8959030048511526722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2116486441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058243240 + 1058243241.

It is an arithmetic number, because the mean of its divisors is an integer number (1058243241).

Almost surely, 2^2116486481 is an apocalyptic number.

It is an amenable number.

2116486481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116486481 is an equidigital number, since it uses as much as digits as its factorization.

2116486481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 41.

The square root of 2116486481 is about 46005.2875330652. The cubic root of 2116486481 is about 1283.9215832601.

The spelling of 2116486481 in words is "two billion, one hundred sixteen million, four hundred eighty-six thousand, four hundred eighty-one".