3651322813 has 2 divisors, whose sum is σ = 3651322814. Its totient is φ = 3651322812.

The previous prime is 3651322757. The next prime is 3651322819. The reversal of 3651322813 is 3182231563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2178835684 + 1472487129 = 46678^2 + 38373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3651322813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3651322819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825661406 + 1825661407.

It is an arithmetic number, because the mean of its divisors is an integer number (1825661407).

Almost surely, 2^3651322813 is an apocalyptic number.

It is an amenable number.

3651322813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651322813 is an equidigital number, since it uses as much as digits as its factorization.

3651322813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 3651322813 is about 60426.1765545364. The cubic root of 3651322813 is about 1539.8677028364.

The spelling of 3651322813 in words is "three billion, six hundred fifty-one million, three hundred twenty-two thousand, eight hundred thirteen".