30988515302668 has 96 divisors (see below), whose sum is σ = 68123352084480. Its totient is φ = 11982076165440.

The previous prime is 30988515302617. The next prime is 30988515302669. The reversal of 30988515302668 is 86620351588903.

It is not an unprimeable number, because it can be changed into a prime (30988515302669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114729705 + ... + 114999487.

It is an arithmetic number, because the mean of its divisors is an integer number (709618250880).

Almost surely, 2^{30988515302668} 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 30988515302668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34061676042240).

30988515302668 is an abundant number, since it is smaller than the sum of its proper divisors (37134836781812).

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

30988515302668 is a wasteful number, since it uses less digits than its factorization.

30988515302668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272627 (or 272625 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 64.

The spelling of 30988515302668 in words is "thirty trillion, nine hundred eighty-eight billion, five hundred fifteen million, three hundred two thousand, six hundred sixty-eight".