30855871488 has 352 divisors, whose sum is σ = 95872702464. Its totient is φ = 8736473088.

The previous prime is 30855871457. The next prime is 30855871523. The reversal of 30855871488 is 88417855803.

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, 31908381 + ... + 31909347.

It is an arithmetic number, because the mean of its divisors is an integer number (272365632).

Almost surely, 2^30855871488 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 30855871488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47936351232).

30855871488 is an abundant number, since it is smaller than the sum of its proper divisors (65016830976).

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

30855871488 is a wasteful number, since it uses less digits than its factorization.

30855871488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 30855871488 in words is "thirty billion, eight hundred fifty-five million, eight hundred seventy-one thousand, four hundred eighty-eight".