2641722271461 has 48 divisors (see below), whose sum is σ = 4972653713664. Its totient is φ = 1311469097472.

The previous prime is 2641722271421. The next prime is 2641722271519. The reversal of 2641722271461 is 1641722271462.

2641722271461 is a `hidden beast` number, since 2 + 6 + 417 + 2 + 227 + 1 + 4 + 6 + 1 = 666.

It is not a de Polignac number, because 2641722271461 - 2⁷ = 2641722271333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641722271421) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 94855081 + ... + 94882926.

It is an arithmetic number, because the mean of its divisors is an integer number (103596952368).

Almost surely, 2^{2641722271461} is an apocalyptic number.

2641722271461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2641722271461 is a deficient number, since it is larger than the sum of its proper divisors (2330931442203).

2641722271461 is a wasteful number, since it uses less digits than its factorization.

2641722271461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189738050 (or 189738047 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

Subtracting from 2641722271461 its reverse (1641722271462), we obtain a palindrome (999999999999).

The spelling of 2641722271461 in words is "two trillion, six hundred forty-one billion, seven hundred twenty-two million, two hundred seventy-one thousand, four hundred sixty-one".