318648201378 has 64 divisors (see below), whose sum is σ = 708782441472. Its totient is φ = 94839459840.

The previous prime is 318648201367. The next prime is 318648201379. The reversal of 318648201378 is 873102846813.

It is a self number, because there is not a number n which added to its sum of digits gives 318648201378.

It is not an unprimeable number, because it can be changed into a prime (318648201379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5467126 + ... + 5525102.

It is an arithmetic number, because the mean of its divisors is an integer number (11074725648).

Almost surely, 2^318648201378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318648201378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354391220736).

318648201378 is an abundant number, since it is smaller than the sum of its proper divisors (390134240094).

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

318648201378 is a wasteful number, since it uses less digits than its factorization.

318648201378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60299.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 318648201378 in words is "three hundred eighteen billion, six hundred forty-eight million, two hundred one thousand, three hundred seventy-eight".