2068897805 has 8 divisors (see below), whose sum is σ = 2673652632. Its totient is φ = 1527801408.

The previous prime is 2068897799. The next prime is 2068897813. The reversal of 2068897805 is 5087988602.

It can be written as a sum of positive squares in 4 ways, for example, as 358496356 + 1710401449 = 18934^2 + 41357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2068897805 - 2¹² = 2068893709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15914534 + ... + 15914663.

It is an arithmetic number, because the mean of its divisors is an integer number (334206579).

Almost surely, 2^2068897805 is an apocalyptic number.

It is an amenable number.

2068897805 is a deficient number, since it is larger than the sum of its proper divisors (604754827).

2068897805 is a wasteful number, since it uses less digits than its factorization.

2068897805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31829215.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 2068897805 is about 45485.1382871373. The cubic root of 2068897805 is about 1274.2256592553.

The spelling of 2068897805 in words is "two billion, sixty-eight million, eight hundred ninety-seven thousand, eight hundred five".