2091715471 has 2 divisors, whose sum is σ = 2091715472. Its totient is φ = 2091715470.

The previous prime is 2091715429. The next prime is 2091715477. The reversal of 2091715471 is 1745171902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2091715471 - 2¹⁷ = 2091584399 is a prime.

It is a super-3 number, since 3×2091715471³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2091715471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091715477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045857735 + 1045857736.

It is an arithmetic number, because the mean of its divisors is an integer number (1045857736).

Almost surely, 2^2091715471 is an apocalyptic number.

2091715471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091715471 is an equidigital number, since it uses as much as digits as its factorization.

2091715471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 2091715471 is about 45735.2760022283. The cubic root of 2091715471 is about 1278.8929781997.

The spelling of 2091715471 in words is "two billion, ninety-one million, seven hundred fifteen thousand, four hundred seventy-one".