3261326452541 has 4 divisors (see below), whose sum is σ = 3261378715452. Its totient is φ = 3261274189632.

The previous prime is 3261326452519. The next prime is 3261326452561. The reversal of 3261326452541 is 1452546231623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2142446964100 + 1118879488441 = 1463710^2 + 1057771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3261326452541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3261326452492 and 3261326452501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261326452561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26037740 + ... + 26162693.

It is an arithmetic number, because the mean of its divisors is an integer number (815344678863).

Almost surely, 2^{3261326452541} is an apocalyptic number.

It is an amenable number.

3261326452541 is a deficient number, since it is larger than the sum of its proper divisors (52262911).

3261326452541 is an equidigital number, since it uses as much as digits as its factorization.

3261326452541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52262910.

The product of its digits is 1036800, while the sum is 44.

The spelling of 3261326452541 in words is "three trillion, two hundred sixty-one billion, three hundred twenty-six million, four hundred fifty-two thousand, five hundred forty-one".