3651514649 has 2 divisors, whose sum is σ = 3651514650. Its totient is φ = 3651514648.

The previous prime is 3651514637. The next prime is 3651514651. The reversal of 3651514649 is 9464151563.

3651514649 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1974202624 + 1677312025 = 44432^2 + 40955^2 .

It is a cyclic number.

It is not a de Polignac number, because 3651514649 - 2²⁰ = 3650466073 is a prime.

Together with 3651514651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3651514679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825757324 + 1825757325.

It is an arithmetic number, because the mean of its divisors is an integer number (1825757325).

Almost surely, 2^3651514649 is an apocalyptic number.

It is an amenable number.

3651514649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651514649 is an equidigital number, since it uses as much as digits as its factorization.

3651514649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 3651514649 is about 60427.7638921051. The cubic root of 3651514649 is about 1539.8946699478.

The spelling of 3651514649 in words is "three billion, six hundred fifty-one million, five hundred fourteen thousand, six hundred forty-nine".