30752648648 has 8 divisors (see below), whose sum is σ = 57661216230. Its totient is φ = 15376324320.

The previous prime is 30752648573. The next prime is 30752648653. The reversal of 30752648648 is 84684625703.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23659977124 + 7092671524 = 153818^2 + 84218^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 30752648648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922040533 + ... + 1922040548.

Almost surely, 2^30752648648 is an apocalyptic number.

It is an amenable number.

30752648648 is a deficient number, since it is larger than the sum of its proper divisors (26908567582).

30752648648 is a wasteful number, since it uses less digits than its factorization.

30752648648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844081087 (or 3844081083 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 30752648648 in words is "thirty billion, seven hundred fifty-two million, six hundred forty-eight thousand, six hundred forty-eight".