3648265421 has 2 divisors, whose sum is σ = 3648265422. Its totient is φ = 3648265420.

The previous prime is 3648265417. The next prime is 3648265429. The reversal of 3648265421 is 1245628463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2108095396 + 1540170025 = 45914^2 + 39245^2 .

It is a cyclic number.

It is not a de Polignac number, because 3648265421 - 2² = 3648265417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3648265429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824132710 + 1824132711.

It is an arithmetic number, because the mean of its divisors is an integer number (1824132711).

Almost surely, 2^3648265421 is an apocalyptic number.

It is an amenable number.

3648265421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3648265421 is an equidigital number, since it uses as much as digits as its factorization.

3648265421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The square root of 3648265421 is about 60400.8726840929. The cubic root of 3648265421 is about 1539.4377861455.

The spelling of 3648265421 in words is "three billion, six hundred forty-eight million, two hundred sixty-five thousand, four hundred twenty-one".