2081915508 has 12 divisors (see below), whose sum is σ = 4857802880. Its totient is φ = 693971832.

The previous prime is 2081915467. The next prime is 2081915509. The reversal of 2081915508 is 8055191802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081915509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86746468 + ... + 86746491.

Almost surely, 2^2081915508 is an apocalyptic number.

It is an amenable number.

2081915508 is an abundant number, since it is smaller than the sum of its proper divisors (2775887372).

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

2081915508 is a wasteful number, since it uses less digits than its factorization.

2081915508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173492966 (or 173492964 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 2081915508 is about 45628.0123169967. The cubic root of 2081915508 is about 1276.8925901245.

The spelling of 2081915508 in words is "two billion, eighty-one million, nine hundred fifteen thousand, five hundred eight".