2071718261 has 8 divisors (see below), whose sum is σ = 2163744960. Its totient is φ = 1979854272.

The previous prime is 2071718221. The next prime is 2071718267. The reversal of 2071718261 is 1628171702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2071718261 - 2¹⁰ = 2071717237 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 (2071718267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14276 + ... + 65933.

It is an arithmetic number, because the mean of its divisors is an integer number (270468120).

Almost surely, 2^2071718261 is an apocalyptic number.

It is an amenable number.

2071718261 is a deficient number, since it is larger than the sum of its proper divisors (92026699).

2071718261 is a wasteful number, since it uses less digits than its factorization.

2071718261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81355.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 2071718261 is about 45516.1318765117. The cubic root of 2071718261 is about 1274.8044320827.

Adding to 2071718261 its reverse (1628171702), we get a palindrome (3699889963).

The spelling of 2071718261 in words is "two billion, seventy-one million, seven hundred eighteen thousand, two hundred sixty-one".