3245140325821 has 2 divisors, whose sum is σ = 3245140325822. Its totient is φ = 3245140325820.

The previous prime is 3245140325773. The next prime is 3245140325827. The reversal of 3245140325821 is 1285230415423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2663407680025 + 581732645796 = 1631995^2 + 762714^2 .

It is a cyclic number.

It is not a de Polignac number, because 3245140325821 - 2⁹ = 3245140325309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3245140325827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622570162910 + 1622570162911.

It is an arithmetic number, because the mean of its divisors is an integer number (1622570162911).

Almost surely, 2^{3245140325821} is an apocalyptic number.

It is an amenable number.

3245140325821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3245140325821 is an equidigital number, since it uses as much as digits as its factorization.

3245140325821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 3245140325821 in words is "three trillion, two hundred forty-five billion, one hundred forty million, three hundred twenty-five thousand, eight hundred twenty-one".