2621211406441 has 4 divisors (see below), whose sum is σ = 2621482230400. Its totient is φ = 2620940582484.

The previous prime is 2621211406427. The next prime is 2621211406493. The reversal of 2621211406441 is 1446041121262.

2621211406441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2621211406441 - 2¹⁷ = 2621211275369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2621211406397 and 2621211406406.

It is not an unprimeable number, because it can be changed into a prime (2621211406421) 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, 135397461 + ... + 135416818.

It is an arithmetic number, because the mean of its divisors is an integer number (655370557600).

Almost surely, 2^{2621211406441} is an apocalyptic number.

It is an amenable number.

2621211406441 is a deficient number, since it is larger than the sum of its proper divisors (270823959).

2621211406441 is an equidigital number, since it uses as much as digits as its factorization.

2621211406441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270823958.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 2621211406441 in words is "two trillion, six hundred twenty-one billion, two hundred eleven million, four hundred six thousand, four hundred forty-one".