2139108416 has 28 divisors (see below), whose sum is σ = 4348330140. Its totient is φ = 1043466240.

The previous prime is 2139108409. The next prime is 2139108427. The reversal of 2139108416 is 6148019312.

It can be written as a sum of positive squares in 2 ways, for example, as 327754816 + 1811353600 = 18104^2 + 42560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404981 + ... + 410228.

It is an arithmetic number, because the mean of its divisors is an integer number (155297505).

Almost surely, 2^2139108416 is an apocalyptic number.

It is an amenable number.

2139108416 is an abundant number, since it is smaller than the sum of its proper divisors (2209221724).

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

2139108416 is an equidigital number, since it uses as much as digits as its factorization.

2139108416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815262 (or 815252 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 2139108416 is about 46250.4963865254. The cubic root of 2139108416 is about 1288.4797538950.

The spelling of 2139108416 in words is "two billion, one hundred thirty-nine million, one hundred eight thousand, four hundred sixteen".