478278343740 has 192 divisors, whose sum is σ = 1456205313024. Its totient is φ = 116820652032.

The previous prime is 478278343693. The next prime is 478278343747. The reversal of 478278343740 is 47343872874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478278343747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12129537 + ... + 12168903.

It is an arithmetic number, because the mean of its divisors is an integer number (7584402672).

Almost surely, 2^478278343740 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 478278343740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728102656512).

478278343740 is an abundant number, since it is smaller than the sum of its proper divisors (977926969284).

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

478278343740 is a wasteful number, since it uses less digits than its factorization.

478278343740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39716 (or 39714 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 57.

The spelling of 478278343740 in words is "four hundred seventy-eight billion, two hundred seventy-eight million, three hundred forty-three thousand, seven hundred forty".