7871053873 has 4 divisors (see below), whose sum is σ = 8334057060. Its totient is φ = 7408050688.

The previous prime is 7871053849. The next prime is 7871053909. The reversal of 7871053873 is 3783501787.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5137018929 + 2734034944 = 71673^2 + 52288^2 .

It is a cyclic number.

It is not a de Polignac number, because 7871053873 - 2²¹ = 7868956721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7871053973) 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, 231501568 + ... + 231501601.

It is an arithmetic number, because the mean of its divisors is an integer number (2083514265).

Almost surely, 2^7871053873 is an apocalyptic number.

It is an amenable number.

7871053873 is a deficient number, since it is larger than the sum of its proper divisors (463003187).

7871053873 is a wasteful number, since it uses less digits than its factorization.

7871053873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463003186.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 7871053873 is about 88718.9600536436. The cubic root of 7871053873 is about 1989.1962338207.

The spelling of 7871053873 in words is "seven billion, eight hundred seventy-one million, fifty-three thousand, eight hundred seventy-three".