2106986888 has 8 divisors (see below), whose sum is σ = 3950600430. Its totient is φ = 1053493440.

The previous prime is 2106986887. The next prime is 2106986897. The reversal of 2106986888 is 8886896012.

It can be written as a sum of positive squares in only one way, i.e., 2088307204 + 18679684 = 45698^2 + 4322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2106986887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131686673 + ... + 131686688.

Almost surely, 2^2106986888 is an apocalyptic number.

It is an amenable number.

2106986888 is a deficient number, since it is larger than the sum of its proper divisors (1843613542).

2106986888 is a wasteful number, since it uses less digits than its factorization.

2106986888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263373367 (or 263373363 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 56.

The square root of 2106986888 is about 45901.9268440879. The cubic root of 2106986888 is about 1281.9977933557.

The spelling of 2106986888 in words is "two billion, one hundred six million, nine hundred eighty-six thousand, eight hundred eighty-eight".