2081707658 has 8 divisors (see below), whose sum is σ = 3195179328. Its totient is φ = 1016647884.

The previous prime is 2081707651. The next prime is 2081707669. The reversal of 2081707658 is 8567071802.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2081707651) 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, 12102866 + ... + 12103037.

It is an arithmetic number, because the mean of its divisors is an integer number (399397416).

Almost surely, 2^2081707658 is an apocalyptic number.

2081707658 is a deficient number, since it is larger than the sum of its proper divisors (1113471670).

2081707658 is a wasteful number, since it uses less digits than its factorization.

2081707658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24205948.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 2081707658 is about 45625.7346023053. The cubic root of 2081707658 is about 1276.8500954513.

The spelling of 2081707658 in words is "two billion, eighty-one million, seven hundred seven thousand, six hundred fifty-eight".