2145488468 has 48 divisors (see below), whose sum is σ = 4034091600. Its totient is φ = 994836480.

The previous prime is 2145488459. The next prime is 2145488473. The reversal of 2145488468 is 8648845412.

It can be written as a sum of positive squares in 8 ways, for example, as 57729604 + 2087758864 = 7598^2 + 45692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789588 + ... + 2790356.

It is an arithmetic number, because the mean of its divisors is an integer number (84043575).

Almost surely, 2^2145488468 is an apocalyptic number.

It is an amenable number.

2145488468 is a deficient number, since it is larger than the sum of its proper divisors (1888603132).

2145488468 is a wasteful number, since it uses less digits than its factorization.

2145488468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1338 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 50.

The square root of 2145488468 is about 46319.4178288113. The cubic root of 2145488468 is about 1289.7594784232.

The spelling of 2145488468 in words is "two billion, one hundred forty-five million, four hundred eighty-eight thousand, four hundred sixty-eight".