30495190986 has 128 divisors (see below), whose sum is σ = 76174318080. Its totient is φ = 8981107200.

The previous prime is 30495190919. The next prime is 30495191021. The reversal of 30495190986 is 68909159403.

30495190986 is a `hidden beast` number, since 3 + 0 + 49 + 519 + 0 + 9 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1515451 + ... + 1535441.

It is an arithmetic number, because the mean of its divisors is an integer number (595111860).

Almost surely, 2^30495190986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30495190986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38087159040).

30495190986 is an abundant number, since it is smaller than the sum of its proper divisors (45679127094).

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

30495190986 is a wasteful number, since it uses less digits than its factorization.

30495190986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20109 (or 20103 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 30495190986 in words is "thirty billion, four hundred ninety-five million, one hundred ninety thousand, nine hundred eighty-six".