30690765866 has 8 divisors (see below), whose sum is σ = 46048571940. Its totient is φ = 15341241888.

The previous prime is 30690765827. The next prime is 30690765887. The reversal of 30690765866 is 66856709603.

It can be written as a sum of positive squares in 2 ways, for example, as 26072883841 + 4617882025 = 161471^2 + 67955^2 .

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 2061251 + ... + 2076086.

Almost surely, 2^30690765866 is an apocalyptic number.

30690765866 is a deficient number, since it is larger than the sum of its proper divisors (15357806074).

30690765866 is a wasteful number, since it uses less digits than its factorization.

30690765866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141048.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 30690765866 in words is "thirty billion, six hundred ninety million, seven hundred sixty-five thousand, eight hundred sixty-six".