3261326452505 has 16 divisors (see below), whose sum is σ = 4416592564800. Its totient is φ = 2290085031360.

The previous prime is 3261326452493. The next prime is 3261326452519. The reversal of 3261326452505 is 5052546231623.

It is not a de Polignac number, because 3261326452505 - 2¹⁸ = 3261326190361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022357795 + ... + 1022360984.

It is an arithmetic number, because the mean of its divisors is an integer number (276037035300).

Almost surely, 2^{3261326452505} is an apocalyptic number.

It is an amenable number.

3261326452505 is a deficient number, since it is larger than the sum of its proper divisors (1155266112295).

3261326452505 is a wasteful number, since it uses less digits than its factorization.

3261326452505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044718824.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 3261326452505 in words is "three trillion, two hundred sixty-one billion, three hundred twenty-six million, four hundred fifty-two thousand, five hundred five".