2851851901 has 2 divisors, whose sum is σ = 2851851902. Its totient is φ = 2851851900.

The previous prime is 2851851839. The next prime is 2851851941. The reversal of 2851851901 is 1091581582.

It is an a-pointer prime, because the next prime (2851851941) can be obtained adding 2851851901 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2587756900 + 264095001 = 50870^2 + 16251^2 .

It is a cyclic number.

It is not a de Polignac number, because 2851851901 - 2⁷ = 2851851773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2851851941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425925950 + 1425925951.

It is an arithmetic number, because the mean of its divisors is an integer number (1425925951).

Almost surely, 2^2851851901 is an apocalyptic number.

It is an amenable number.

2851851901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851851901 is an equidigital number, since it uses as much as digits as its factorization.

2851851901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 40.

The square root of 2851851901 is about 53402.7330854892. The cubic root of 2851851901 is about 1418.1069631848.

The spelling of 2851851901 in words is "two billion, eight hundred fifty-one million, eight hundred fifty-one thousand, nine hundred one".