3651590549 has 2 divisors, whose sum is σ = 3651590550. Its totient is φ = 3651590548.

The previous prime is 3651590539. The next prime is 3651590567. The reversal of 3651590549 is 9450951563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2012150449 + 1639440100 = 44857^2 + 40490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3651590549 is a prime.

It is a super-2 number, since 2×3651590549² = 26668227075092242802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3651590519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825795274 + 1825795275.

It is an arithmetic number, because the mean of its divisors is an integer number (1825795275).

Almost surely, 2^3651590549 is an apocalyptic number.

It is an amenable number.

3651590549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3651590549 is an equidigital number, since it uses as much as digits as its factorization.

3651590549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729000, while the sum is 47.

The square root of 3651590549 is about 60428.3919114186. The cubic root of 3651590549 is about 1539.9053392369.

The spelling of 3651590549 in words is "three billion, six hundred fifty-one million, five hundred ninety thousand, five hundred forty-nine".