30685197727 has 8 divisors (see below), whose sum is σ = 32592707856. Its totient is φ = 28789076352.

The previous prime is 30685197703. The next prime is 30685197757. The reversal of 30685197727 is 72779158603.

It is a happy number.

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 30685197727 - 2¹¹ = 30685195679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30685197757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2841633 + ... + 2852410.

It is an arithmetic number, because the mean of its divisors is an integer number (4074088482).

Almost surely, 2^30685197727 is an apocalyptic number.

30685197727 is a deficient number, since it is larger than the sum of its proper divisors (1907510129).

30685197727 is a wasteful number, since it uses less digits than its factorization.

30685197727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694377.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 30685197727 in words is "thirty billion, six hundred eighty-five million, one hundred ninety-seven thousand, seven hundred twenty-seven".