2621673414361 has 4 divisors (see below), whose sum is σ = 2621677212724. Its totient is φ = 2621669616000.

The previous prime is 2621673414359. The next prime is 2621673414389. The reversal of 2621673414361 is 1634143761262.

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 1268650806336 + 1353022608025 = 1126344^2 + 1163195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2621673414361 - 2¹ = 2621673414359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2621673414461) 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, 539280 + ... + 2352481.

It is an arithmetic number, because the mean of its divisors is an integer number (655419303181).

Almost surely, 2^{2621673414361} is an apocalyptic number.

It is an amenable number.

2621673414361 is a deficient number, since it is larger than the sum of its proper divisors (3798363).

2621673414361 is an equidigital number, since it uses as much as digits as its factorization.

2621673414361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798362.

The product of its digits is 870912, while the sum is 46.

The spelling of 2621673414361 in words is "two trillion, six hundred twenty-one billion, six hundred seventy-three million, four hundred fourteen thousand, three hundred sixty-one".