2105987012 has 24 divisors (see below), whose sum is σ = 3769075800. Its totient is φ = 1029257216.

The previous prime is 2105986943. The next prime is 2105987027. The reversal of 2105987012 is 2107895012.

It can be written as a sum of positive squares in 4 ways, for example, as 265233796 + 1840753216 = 16286^2 + 42904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38564 + ... + 75492.

It is an arithmetic number, because the mean of its divisors is an integer number (157044825).

Almost surely, 2^2105987012 is an apocalyptic number.

It is an amenable number.

2105987012 is a deficient number, since it is larger than the sum of its proper divisors (1663088788).

2105987012 is a wasteful number, since it uses less digits than its factorization.

2105987012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37255 (or 37253 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 2105987012 is about 45891.0341134300. The cubic root of 2105987012 is about 1281.7949694949.

The spelling of 2105987012 in words is "two billion, one hundred five million, nine hundred eighty-seven thousand, twelve".