320381078900 has 72 divisors (see below), whose sum is σ = 710583269760. Its totient is φ = 125326109440.

The previous prime is 320381078887. The next prime is 320381078987. The reversal of 320381078900 is 9870183023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6031859 + ... + 6084741.

It is an arithmetic number, because the mean of its divisors is an integer number (9869212080).

Almost surely, 2^320381078900 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 320381078900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355291634880).

320381078900 is an abundant number, since it is smaller than the sum of its proper divisors (390202190860).

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

320381078900 is a wasteful number, since it uses less digits than its factorization.

320381078900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54233 (or 54226 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 320381078900 in words is "three hundred twenty billion, three hundred eighty-one million, seventy-eight thousand, nine hundred".