30865872888 has 96 divisors (see below), whose sum is σ = 85945401360. Its totient is φ = 10001180160.

The previous prime is 30865872881. The next prime is 30865872893. The reversal of 30865872888 is 88827856803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30865872881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 798831 + ... + 836577.

Almost surely, 2^30865872888 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 30865872888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42972700680).

30865872888 is an abundant number, since it is smaller than the sum of its proper divisors (55079528472).

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

30865872888 is a wasteful number, since it uses less digits than its factorization.

30865872888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38077 (or 38070 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 63.

The spelling of 30865872888 in words is "thirty billion, eight hundred sixty-five million, eight hundred seventy-two thousand, eight hundred eighty-eight".