7871358514157 has 2 divisors, whose sum is σ = 7871358514158. Its totient is φ = 7871358514156.

The previous prime is 7871358514057. The next prime is 7871358514249. The reversal of 7871358514157 is 7514158531787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7152142573801 + 719215940356 = 2674349^2 + 848066^2 .

It is a cyclic number.

It is not a de Polignac number, because 7871358514157 - 2¹² = 7871358510061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7871358514157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7871358514057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3935679257078 + 3935679257079.

It is an arithmetic number, because the mean of its divisors is an integer number (3935679257079).

Almost surely, 2^{7871358514157} is an apocalyptic number.

It is an amenable number.

7871358514157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7871358514157 is an equidigital number, since it uses as much as digits as its factorization.

7871358514157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928000, while the sum is 62.

The spelling of 7871358514157 in words is "seven trillion, eight hundred seventy-one billion, three hundred fifty-eight million, five hundred fourteen thousand, one hundred fifty-seven".