478688844940 has 48 divisors (see below), whose sum is σ = 1011653233920. Its totient is φ = 190255780800.

The previous prime is 478688844937. The next prime is 478688844989. The reversal of 478688844940 is 49448886874.

It is a self number, because there is not a number n which added to its sum of digits gives 478688844940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16021015 + ... + 16050865.

It is an arithmetic number, because the mean of its divisors is an integer number (21076109040).

Almost surely, 2^478688844940 is an apocalyptic number.

It is an amenable number.

478688844940 is an abundant number, since it is smaller than the sum of its proper divisors (532964388980).

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

478688844940 is a wasteful number, since it uses less digits than its factorization.

478688844940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34942 (or 34940 counting only the distinct ones).

The product of its (nonzero) digits is 396361728, while the sum is 70.

The spelling of 478688844940 in words is "four hundred seventy-eight billion, six hundred eighty-eight million, eight hundred forty-four thousand, nine hundred forty".