2108838864 has 80 divisors (see below), whose sum is σ = 6069611520. Its totient is φ = 625438080.

The previous prime is 2108838863. The next prime is 2108838913. The reversal of 2108838864 is 4688388012.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108838863) 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 in 15 ways as a sum of consecutive naturals, for example, 17674 + ... + 67305.

It is an arithmetic number, because the mean of its divisors is an integer number (75870144).

Almost surely, 2^2108838864 is an apocalyptic number.

2108838864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2108838864 is an abundant number, since it is smaller than the sum of its proper divisors (3960772656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2108838864 is a wasteful number, since it uses less digits than its factorization.

2108838864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85048 (or 85042 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 2108838864 is about 45922.0955967822. The cubic root of 2108838864 is about 1282.3732954330.

The spelling of 2108838864 in words is "two billion, one hundred eight million, eight hundred thirty-eight thousand, eight hundred sixty-four".