2851918871 has 2 divisors, whose sum is σ = 2851918872. Its totient is φ = 2851918870.

The previous prime is 2851918847. The next prime is 2851918889. The reversal of 2851918871 is 1788191582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2851918871 - 2¹⁸ = 2851656727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2851918801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425959435 + 1425959436.

It is an arithmetic number, because the mean of its divisors is an integer number (1425959436).

Almost surely, 2^2851918871 is an apocalyptic number.

2851918871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851918871 is an equidigital number, since it uses as much as digits as its factorization.

2851918871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 50.

The square root of 2851918871 is about 53403.3601096410. The cubic root of 2851918871 is about 1418.1180635602.

The spelling of 2851918871 in words is "two billion, eight hundred fifty-one million, nine hundred eighteen thousand, eight hundred seventy-one".