30787722368 has 72 divisors (see below), whose sum is σ = 66471632595. Its totient is φ = 14197807104.

The previous prime is 30787722359. The next prime is 30787722389. The reversal of 30787722368 is 86322778703.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 4856417344 + 25931305024 = 69688^2 + 161032^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=124072.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25806380 + ... + 25807572.

Almost surely, 2^30787722368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30787722368

30787722368 is an abundant number, since it is smaller than the sum of its proper divisors (35683910227).

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

30787722368 is an frugal number, since it uses more digits than its factorization.

30787722368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 30787722368 in words is "thirty billion, seven hundred eighty-seven million, seven hundred twenty-two thousand, three hundred sixty-eight".