3261361329420 has 24 divisors (see below), whose sum is σ = 9131811722544. Its totient is φ = 869696354496.

The previous prime is 3261361329407. The next prime is 3261361329463. The reversal of 3261361329420 is 249231631623.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27178011019 + ... + 27178011138.

It is an arithmetic number, because the mean of its divisors is an integer number (380492155106).

Almost surely, 2^{3261361329420} is an apocalyptic number.

3261361329420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3261361329420 is an abundant number, since it is smaller than the sum of its proper divisors (5870450393124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3261361329420 is a wasteful number, since it uses less digits than its factorization.

3261361329420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54356022169 (or 54356022167 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 3261361329420 in words is "three trillion, two hundred sixty-one billion, three hundred sixty-one million, three hundred twenty-nine thousand, four hundred twenty".