2063980649 has 2 divisors, whose sum is σ = 2063980650. Its totient is φ = 2063980648.

The previous prime is 2063980613. The next prime is 2063980669. The reversal of 2063980649 is 9460893602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1941988624 + 121992025 = 44068^2 + 11045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2063980649 is a prime.

It is a super-2 number, since 2×2063980649² = 8520032238892922402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2063980609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031990324 + 1031990325.

It is an arithmetic number, because the mean of its divisors is an integer number (1031990325).

Almost surely, 2^2063980649 is an apocalyptic number.

It is an amenable number.

2063980649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2063980649 is an equidigital number, since it uses as much as digits as its factorization.

2063980649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 2063980649 is about 45431.0537958344. The cubic root of 2063980649 is about 1273.2153730548.

The spelling of 2063980649 in words is "two billion, sixty-three million, nine hundred eighty thousand, six hundred forty-nine".