30831860980 has 96 divisors (see below), whose sum is σ = 69735687840. Its totient is φ = 11426365440.

The previous prime is 30831860963. The next prime is 30831861001. The reversal of 30831860980 is 8906813803.

It can be written as a sum of positive squares in 16 ways, for example, as 587868516 + 30243992464 = 24246^2 + 173908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30831860980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1556740 + ... + 1576420.

It is an arithmetic number, because the mean of its divisors is an integer number (726413415).

Almost surely, 2^30831860980 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 30831860980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34867843920).

30831860980 is an abundant number, since it is smaller than the sum of its proper divisors (38903826860).

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

30831860980 is a wasteful number, since it uses less digits than its factorization.

30831860980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19829 (or 19827 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 30831860980 in words is "thirty billion, eight hundred thirty-one million, eight hundred sixty thousand, nine hundred eighty".