30855780600 has 96 divisors (see below), whose sum is σ = 96071046000. Its totient is φ = 8192240640.

The previous prime is 30855780577. The next prime is 30855780601. The reversal of 30855780600 is 608755803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30855780601) 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, 25116 + ... + 249684.

Almost surely, 2^30855780600 is an apocalyptic number.

30855780600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30855780600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48035523000).

30855780600 is an abundant number, since it is smaller than the sum of its proper divisors (65215265400).

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

30855780600 is a wasteful number, since it uses less digits than its factorization.

30855780600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224817 (or 224808 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 30855780600 in words is "thirty billion, eight hundred fifty-five million, seven hundred eighty thousand, six hundred".