7797130871 has 4 divisors (see below), whose sum is σ = 8207506200. Its totient is φ = 7386755544.

The previous prime is 7797130867. The next prime is 7797130877. The reversal of 7797130871 is 1780317977.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7797130871 - 2² = 7797130867 is a prime.

It is a super-3 number, since 3×7797130871³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7797130877) 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, 205187636 + ... + 205187673.

It is an arithmetic number, because the mean of its divisors is an integer number (2051876550).

Almost surely, 2^7797130871 is an apocalyptic number.

7797130871 is a deficient number, since it is larger than the sum of its proper divisors (410375329).

7797130871 is a wasteful number, since it uses less digits than its factorization.

7797130871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410375328.

The product of its (nonzero) digits is 518616, while the sum is 50.

The square root of 7797130871 is about 88301.3639249134. The cubic root of 7797130871 is about 1982.9492889681.

The spelling of 7797130871 in words is "seven billion, seven hundred ninety-seven million, one hundred thirty thousand, eight hundred seventy-one".