30718753248 has 48 divisors (see below), whose sum is σ = 80647978320. Its totient is φ = 10238155776.

The previous prime is 30718753223. The next prime is 30718753283. The reversal of 30718753248 is 84235781703.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×30718753248² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 30718753197 and 30718753206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843186 + ... + 878862.

It is an arithmetic number, because the mean of its divisors is an integer number (1680166215).

Almost surely, 2^30718753248 is an apocalyptic number.

It is an amenable number.

30718753248 is an abundant number, since it is smaller than the sum of its proper divisors (49929225072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30718753248 is a wasteful number, since it uses less digits than its factorization.

30718753248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44659 (or 44651 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 30718753248 in words is "thirty billion, seven hundred eighteen million, seven hundred fifty-three thousand, two hundred forty-eight".