7871290163 has 4 divisors (see below), whose sum is σ = 8586862008. Its totient is φ = 7155718320.

The previous prime is 7871290159. The next prime is 7871290183. The reversal of 7871290163 is 3610921787.

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 7871290163 - 2² = 7871290159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7871290183) 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, 357785906 + ... + 357785927.

It is an arithmetic number, because the mean of its divisors is an integer number (2146715502).

Almost surely, 2^7871290163 is an apocalyptic number.

7871290163 is a deficient number, since it is larger than the sum of its proper divisors (715571845).

7871290163 is a wasteful number, since it uses less digits than its factorization.

7871290163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715571844.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7871290163 is about 88720.2917206656. The cubic root of 7871290163 is about 1989.2161389263.

The spelling of 7871290163 in words is "seven billion, eight hundred seventy-one million, two hundred ninety thousand, one hundred sixty-three".