845259971371 has 2 divisors, whose sum is σ = 845259971372. Its totient is φ = 845259971370.

The previous prime is 845259971321. The next prime is 845259971393. The reversal of 845259971371 is 173179952548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845259971371 - 2¹⁹ = 845259447083 is a prime.

It is not a weakly prime, because it can be changed into another prime (845259971321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422629985685 + 422629985686.

It is an arithmetic number, because the mean of its divisors is an integer number (422629985686).

Almost surely, 2^845259971371 is an apocalyptic number.

845259971371 is a deficient number, since it is larger than the sum of its proper divisors (1).

845259971371 is an equidigital number, since it uses as much as digits as its factorization.

845259971371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19051200, while the sum is 61.

The spelling of 845259971371 in words is "eight hundred forty-five billion, two hundred fifty-nine million, nine hundred seventy-one thousand, three hundred seventy-one".