478207683764 has 12 divisors (see below), whose sum is σ = 839234167044. Its totient is φ = 238426493184.

The previous prime is 478207683757. The next prime is 478207683781. The reversal of 478207683764 is 467386702874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 255085603600 + 223122080164 = 505060^2 + 472358^2 .

It is a super-3 number, since 3×478207683764³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478207683697 and 478207683706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169335587 + ... + 169338410.

It is an arithmetic number, because the mean of its divisors is an integer number (69936180587).

Almost surely, 2^478207683764 is an apocalyptic number.

It is an amenable number.

478207683764 is a deficient number, since it is larger than the sum of its proper divisors (361026483280).

478207683764 is a wasteful number, since it uses less digits than its factorization.

478207683764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338674354 (or 338674352 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 62.

The spelling of 478207683764 in words is "four hundred seventy-eight billion, two hundred seven million, six hundred eighty-three thousand, seven hundred sixty-four".