3261612937421 has 4 divisors (see below), whose sum is σ = 3265392327552. Its totient is φ = 3257833547292.

The previous prime is 3261612937411. The next prime is 3261612937433. The reversal of 3261612937421 is 1247392161623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3261612937421 - 2¹⁴ = 3261612921037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261612937411) 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, 1889693771 + ... + 1889695496.

It is an arithmetic number, because the mean of its divisors is an integer number (816348081888).

Almost surely, 2^{3261612937421} is an apocalyptic number.

It is an amenable number.

3261612937421 is a deficient number, since it is larger than the sum of its proper divisors (3779390131).

3261612937421 is an equidigital number, since it uses as much as digits as its factorization.

3261612937421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779390130.

The product of its digits is 653184, while the sum is 47.

The spelling of 3261612937421 in words is "three trillion, two hundred sixty-one billion, six hundred twelve million, nine hundred thirty-seven thousand, four hundred twenty-one".