3245831006521 has 2 divisors, whose sum is σ = 3245831006522. Its totient is φ = 3245831006520.

The previous prime is 3245831006489. The next prime is 3245831006603. The reversal of 3245831006521 is 1256001385423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3129399918121 + 116431088400 = 1769011^2 + 341220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3245831006521 - 2⁵ = 3245831006489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3245831006921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622915503260 + 1622915503261.

It is an arithmetic number, because the mean of its divisors is an integer number (1622915503261).

Almost surely, 2^{3245831006521} is an apocalyptic number.

It is an amenable number.

3245831006521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3245831006521 is an equidigital number, since it uses as much as digits as its factorization.

3245831006521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 3245831006521 in words is "three trillion, two hundred forty-five billion, eight hundred thirty-one million, six thousand, five hundred twenty-one".