2068619490 has 192 divisors, whose sum is σ = 6622387200. Its totient is φ = 437415552.

The previous prime is 2068619489. The next prime is 2068619519. The reversal of 2068619490 is 949168602.

It is a happy number.

2068619490 is a `hidden beast` number, since 20 + 6 + 8 + 619 + 4 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 512701 + ... + 516719.

It is an arithmetic number, because the mean of its divisors is an integer number (34491600).

Almost surely, 2^2068619490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2068619490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3311193600).

2068619490 is an abundant number, since it is smaller than the sum of its proper divisors (4553767710).

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

2068619490 is a wasteful number, since it uses less digits than its factorization.

2068619490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2068619490 is about 45482.0787783496. The cubic root of 2068619490 is about 1274.1685190046.

The spelling of 2068619490 in words is "two billion, sixty-eight million, six hundred nineteen thousand, four hundred ninety".