2068706890 has 36 divisors (see below), whose sum is σ = 3935168406. Its totient is φ = 782895456.

The previous prime is 2068706881. The next prime is 2068706903. The reversal of 2068706890 is 986078602.

It can be written as a sum of positive squares in 3 ways, for example, as 1832439249 + 236267641 = 42807^2 + 15371^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2068706890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2732392 + ... + 2733148.

Almost surely, 2^2068706890 is an apocalyptic number.

2068706890 is a deficient number, since it is larger than the sum of its proper divisors (1866461516).

2068706890 is an frugal number, since it uses more digits than its factorization.

2068706890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 2068706890 is about 45483.0395862018. The cubic root of 2068706890 is about 1274.1864634615.

The spelling of 2068706890 in words is "two billion, sixty-eight million, seven hundred six thousand, eight hundred ninety".