2261722615 has 16 divisors (see below), whose sum is σ = 2811322080. Its totient is φ = 1744704640.

The previous prime is 2261722613. The next prime is 2261722621. The reversal of 2261722615 is 5162271622.

It is not a de Polignac number, because 2261722615 - 2¹ = 2261722613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261722613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105780 + ... + 125350.

It is an arithmetic number, because the mean of its divisors is an integer number (175707630).

Almost surely, 2^2261722615 is an apocalyptic number.

2261722615 is a deficient number, since it is larger than the sum of its proper divisors (549599465).

2261722615 is a wasteful number, since it uses less digits than its factorization.

2261722615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20402.

The product of its digits is 20160, while the sum is 34.

The square root of 2261722615 is about 47557.5715843440. The cubic root of 2261722615 is about 1312.6424557697.

The spelling of 2261722615 in words is "two billion, two hundred sixty-one million, seven hundred twenty-two thousand, six hundred fifteen".