318296400000 has 192 divisors, whose sum is σ = 1056779861760. Its totient is φ = 84878720000.

The previous prime is 318296399969. The next prime is 318296400007. The reversal of 318296400000 is 4692813.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (318296400007) 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, 1067377 + ... + 1332623.

It is an arithmetic number, because the mean of its divisors is an integer number (5504061780).

Almost surely, 2^318296400000 is an apocalyptic number.

318296400000 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 318296400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528389930880).

318296400000 is an abundant number, since it is smaller than the sum of its proper divisors (738483461760).

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

318296400000 is an frugal number, since it uses more digits than its factorization.

318296400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265289 (or 265257 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 318296400000 in words is "three hundred eighteen billion, two hundred ninety-six million, four hundred thousand".