30875309660 has 72 divisors (see below), whose sum is σ = 70520402736. Its totient is φ = 11349611520.

The previous prime is 30875309659. The next prime is 30875309683. The reversal of 30875309660 is 6690357803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 747140 + ... + 787380.

It is an arithmetic number, because the mean of its divisors is an integer number (979450038).

Almost surely, 2^30875309660 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 30875309660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35260201368).

30875309660 is an abundant number, since it is smaller than the sum of its proper divisors (39645093076).

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

30875309660 is a wasteful number, since it uses less digits than its factorization.

30875309660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40503 (or 40488 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 30875309660 in words is "thirty billion, eight hundred seventy-five million, three hundred nine thousand, six hundred sixty".