30018359856 has 80 divisors (see below), whose sum is σ = 79399945856. Its totient is φ = 9767374848.

The previous prime is 30018359837. The next prime is 30018359933. The reversal of 30018359856 is 65895381003.

It is a super-2 number, since 2×30018359856² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4357791 + ... + 4364673.

Almost surely, 2^30018359856 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 30018359856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39699972928).

30018359856 is an abundant number, since it is smaller than the sum of its proper divisors (49381586000).

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

30018359856 is a wasteful number, since it uses less digits than its factorization.

30018359856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9050 (or 9044 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 30018359856 in words is "thirty billion, eighteen million, three hundred fifty-nine thousand, eight hundred fifty-six".