2722145417461 has 4 divisors (see below), whose sum is σ = 2722158800172. Its totient is φ = 2722132034752.

The previous prime is 2722145417449. The next prime is 2722145417489. The reversal of 2722145417461 is 1647145412272.

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 1335945300561 + 1386200116900 = 1155831^2 + 1177370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2722145417461 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 (2722145417401) 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, 6381460 + ... + 6794653.

It is an arithmetic number, because the mean of its divisors is an integer number (680539700043).

Almost surely, 2^{2722145417461} is an apocalyptic number.

It is an amenable number.

2722145417461 is a deficient number, since it is larger than the sum of its proper divisors (13382711).

2722145417461 is a wasteful number, since it uses less digits than its factorization.

2722145417461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13382710.

The product of its digits is 752640, while the sum is 46.

The spelling of 2722145417461 in words is "two trillion, seven hundred twenty-two billion, one hundred forty-five million, four hundred seventeen thousand, four hundred sixty-one".