2286715571721 has 165 divisors, whose sum is σ = 4033247462061. Its totient is φ = 1296405678456.

The previous prime is 2286715571719. The next prime is 2286715571753. The reversal of 2286715571721 is 1271755176822.

The square root of 2286715571721 is 1512189.

It is a perfect power (a square), and thus also a powerful number.

2286715571721 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 71 + 557 + 17 + 2 + 1 = 666.

It is not a de Polignac number, because 2286715571721 - 2¹ = 2286715571719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2286715571711) 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 164 ways as a sum of consecutive naturals, for example, 18005634360 + ... + 18005634486.

Almost surely, 2^{2286715571721} is an apocalyptic number.

2286715571721 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2286715571721 is the 1512189-th square number.

2286715571721 is the 756095-th centered octagonal number.

It is an amenable number.

2286715571721 is a deficient number, since it is larger than the sum of its proper divisors (1746531890340).

2286715571721 is an frugal number, since it uses more digits than its factorization.

2286715571721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 137 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 54.

The spelling of 2286715571721 in words is "two trillion, two hundred eighty-six billion, seven hundred fifteen million, five hundred seventy-one thousand, seven hundred twenty-one".