475668073953856 has 63 divisors (see below), whose sum is σ = 1098013402016937. Its totient is φ = 203857222544640.

The previous prime is 475668073953833. The next prime is 475668073953881. The reversal of 475668073953856 is 658359370866574.

The square root of 475668073953856 is 21809816.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 422359384315456 + 53308689638400 = 20551384^2 + 7301280^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 475668073953856.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1221154966 + ... + 1221544426.

It is an arithmetic number, because the mean of its divisors is an integer number (17428784158999).

Almost surely, 2^{475668073953856} is an apocalyptic number.

475668073953856 is the 21809816-th square number.

It is an amenable number.

475668073953856 is an abundant number, since it is smaller than the sum of its proper divisors (622345328063081).

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

475668073953856 is an frugal number, since it uses more digits than its factorization.

475668073953856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778948 (or 389470 counting only the distinct ones).

The product of its (nonzero) digits is 27433728000, while the sum is 82.

The spelling of 475668073953856 in words is "four hundred seventy-five trillion, six hundred sixty-eight billion, seventy-three million, nine hundred fifty-three thousand, eight hundred fifty-six".