3643465541 has 2 divisors, whose sum is σ = 3643465542. Its totient is φ = 3643465540.

The previous prime is 3643465537. The next prime is 3643465571. The reversal of 3643465541 is 1455643463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2864497441 + 778968100 = 53521^2 + 27910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643465541 - 2² = 3643465537 is a prime.

It is a super-2 number, since 2×3643465541² = 26549682296908845362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3643465531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821732770 + 1821732771.

It is an arithmetic number, because the mean of its divisors is an integer number (1821732771).

Almost surely, 2^3643465541 is an apocalyptic number.

It is an amenable number.

3643465541 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643465541 is an equidigital number, since it uses as much as digits as its factorization.

3643465541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 41.

The square root of 3643465541 is about 60361.1260746517. The cubic root of 3643465541 is about 1538.7623638390.

The spelling of 3643465541 in words is "three billion, six hundred forty-three million, four hundred sixty-five thousand, five hundred forty-one".