30987314688 has 160 divisors (see below), whose sum is σ = 90207976320. Its totient is φ = 9374351360.

The previous prime is 30987314669. The next prime is 30987314747. The reversal of 30987314688 is 88641378903.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13667731 + ... + 13669997.

It is an arithmetic number, because the mean of its divisors is an integer number (563799852).

Almost surely, 2^30987314688 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 30987314688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45103988160).

30987314688 is an abundant number, since it is smaller than the sum of its proper divisors (59220661632).

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

30987314688 is a wasteful number, since it uses less digits than its factorization.

30987314688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 30987314688 in words is "thirty billion, nine hundred eighty-seven million, three hundred fourteen thousand, six hundred eighty-eight".