7871469157 has 2 divisors, whose sum is σ = 7871469158. Its totient is φ = 7871469156.

The previous prime is 7871469143. The next prime is 7871469163. The reversal of 7871469157 is 7519641787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3997527076 + 3873942081 = 63226^2 + 62241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7871469157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7871469098 and 7871469107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7871469107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3935734578 + 3935734579.

It is an arithmetic number, because the mean of its divisors is an integer number (3935734579).

Almost surely, 2^7871469157 is an apocalyptic number.

It is an amenable number.

7871469157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7871469157 is an equidigital number, since it uses as much as digits as its factorization.

7871469157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 55.

The square root of 7871469157 is about 88721.3004695039. The cubic root of 7871469157 is about 1989.2312171429.

The spelling of 7871469157 in words is "seven billion, eight hundred seventy-one million, four hundred sixty-nine thousand, one hundred fifty-seven".