2158895195371 has 2 divisors, whose sum is σ = 2158895195372. Its totient is φ = 2158895195370.

The previous prime is 2158895195363. The next prime is 2158895195399. The reversal of 2158895195371 is 1735915988512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2158895195371 - 2³ = 2158895195363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2158895195671) 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, 1079447597685 + 1079447597686.

It is an arithmetic number, because the mean of its divisors is an integer number (1079447597686).

Almost surely, 2^{2158895195371} is an apocalyptic number.

2158895195371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2158895195371 is an equidigital number, since it uses as much as digits as its factorization.

2158895195371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216000, while the sum is 64.

The spelling of 2158895195371 in words is "two trillion, one hundred fifty-eight billion, eight hundred ninety-five million, one hundred ninety-five thousand, three hundred seventy-one".