2081915468 has 12 divisors (see below), whose sum is σ = 3652050360. Its totient is φ = 1038472512.

The previous prime is 2081915467. The next prime is 2081915509. The reversal of 2081915468 is 8645191802.

It is not an unprimeable number, because it can be changed into a prime (2081915467) 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, 619421 + ... + 622772.

It is an arithmetic number, because the mean of its divisors is an integer number (304337530).

Almost surely, 2^2081915468 is an apocalyptic number.

It is an amenable number.

2081915468 is a deficient number, since it is larger than the sum of its proper divisors (1570134892).

2081915468 is a wasteful number, since it uses less digits than its factorization.

2081915468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242616 (or 1242614 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 2081915468 is about 45628.0118786694. The cubic root of 2081915468 is about 1276.8925819468.

The spelling of 2081915468 in words is "two billion, eighty-one million, nine hundred fifteen thousand, four hundred sixty-eight".