2108972736 has 84 divisors (see below), whose sum is σ = 6510011872. Its totient is φ = 648912384.

The previous prime is 2108972699. The next prime is 2108972753. The reversal of 2108972736 is 6372798012.

It is a junction number, because it is equal to n+sod(n) for n = 2108972691 and 2108972700.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 133336 + ... + 148311.

Almost surely, 2^2108972736 is an apocalyptic number.

2108972736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2108972736 is an abundant number, since it is smaller than the sum of its proper divisors (4401039136).

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

2108972736 is a wasteful number, since it uses less digits than its factorization.

2108972736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281678 (or 281665 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 2108972736 is about 45923.5531726368. The cubic root of 2108972736 is about 1282.4004304674.

The spelling of 2108972736 in words is "two billion, one hundred eight million, nine hundred seventy-two thousand, seven hundred thirty-six".