3158819823871 has 2 divisors, whose sum is σ = 3158819823872. Its totient is φ = 3158819823870.

The previous prime is 3158819823853. The next prime is 3158819823893. The reversal of 3158819823871 is 1783289188513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3158819823871 - 2²¹ = 3158817726719 is a prime.

It is a super-2 number, since 2×3158819823871² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3158819823571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579409911935 + 1579409911936.

It is an arithmetic number, because the mean of its divisors is an integer number (1579409911936).

Almost surely, 2^{3158819823871} is an apocalyptic number.

3158819823871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158819823871 is an equidigital number, since it uses as much as digits as its factorization.

3158819823871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 64.

The spelling of 3158819823871 in words is "three trillion, one hundred fifty-eight billion, eight hundred nineteen million, eight hundred twenty-three thousand, eight hundred seventy-one".