30764181688 has 8 divisors (see below), whose sum is σ = 57682840680. Its totient is φ = 15382090840.

The previous prime is 30764181661. The next prime is 30764181689. The reversal of 30764181688 is 88618146703.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30764181689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922761348 + ... + 1922761363.

It is an arithmetic number, because the mean of its divisors is an integer number (7210355085).

Almost surely, 2^30764181688 is an apocalyptic number.

It is an amenable number.

30764181688 is a deficient number, since it is larger than the sum of its proper divisors (26918658992).

30764181688 is a wasteful number, since it uses less digits than its factorization.

30764181688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845522717 (or 3845522713 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 30764181688 in words is "thirty billion, seven hundred sixty-four million, one hundred eighty-one thousand, six hundred eighty-eight".