2100625871 has 2 divisors, whose sum is σ = 2100625872. Its totient is φ = 2100625870.

The previous prime is 2100625867. The next prime is 2100626057. The reversal of 2100625871 is 1785260012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100625871 - 2² = 2100625867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100625841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050312935 + 1050312936.

It is an arithmetic number, because the mean of its divisors is an integer number (1050312936).

Almost surely, 2^2100625871 is an apocalyptic number.

2100625871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100625871 is an equidigital number, since it uses as much as digits as its factorization.

2100625871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2100625871 is about 45832.5852532890. The cubic root of 2100625871 is about 1280.7063709801.

Adding to 2100625871 its reverse (1785260012), we get a palindrome (3885885883).

The spelling of 2100625871 in words is "two billion, one hundred million, six hundred twenty-five thousand, eight hundred seventy-one".