30986351088 has 640 divisors, whose sum is σ = 109364428800. Its totient is φ = 7475973120.

The previous prime is 30986351083. The next prime is 30986351117. The reversal of 30986351088 is 88015368903.

It is a self number, because there is not a number n which added to its sum of digits gives 30986351088.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30986351083) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 179111770 + ... + 179111942.

It is an arithmetic number, because the mean of its divisors is an integer number (170881920).

Almost surely, 2^30986351088 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 30986351088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54682214400).

30986351088 is an abundant number, since it is smaller than the sum of its proper divisors (78378077712).

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

30986351088 is a wasteful number, since it uses less digits than its factorization.

30986351088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 30986351088 in words is "thirty billion, nine hundred eighty-six million, three hundred fifty-one thousand, eighty-eight".