3605132480921 has 2 divisors, whose sum is σ = 3605132480922. Its totient is φ = 3605132480920.

The previous prime is 3605132480893. The next prime is 3605132480933. The reversal of 3605132480921 is 1290842315063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3247276080400 + 357856400521 = 1802020^2 + 598211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3605132480921 is a prime.

It is not a weakly prime, because it can be changed into another prime (3605132480981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1802566240460 + 1802566240461.

It is an arithmetic number, because the mean of its divisors is an integer number (1802566240461).

Almost surely, 2^{3605132480921} is an apocalyptic number.

It is an amenable number.

3605132480921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3605132480921 is an equidigital number, since it uses as much as digits as its factorization.

3605132480921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

Adding to 3605132480921 its reverse (1290842315063), we get a palindrome (4895974795984).

The spelling of 3605132480921 in words is "three trillion, six hundred five billion, one hundred thirty-two million, four hundred eighty thousand, nine hundred twenty-one".