478039491216 has 135 divisors (see below), whose sum is σ = 1556459668803. Its totient is φ = 136566118080.

The previous prime is 478039491211. The next prime is 478039491239. The reversal of 478039491216 is 612194930874.

The square root of 478039491216 is 691404.

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

478039491216 is a `hidden beast` number, since 47 + 80 + 39 + 491 + 2 + 1 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (478039491211) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58073821 + ... + 58082051.

Almost surely, 2^478039491216 is an apocalyptic number.

478039491216 is the 691404-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478039491216

478039491216 is an abundant number, since it is smaller than the sum of its proper divisors (1078420177587).

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

478039491216 is an frugal number, since it uses more digits than its factorization.

478039491216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16490 (or 8243 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 478039491216 in words is "four hundred seventy-eight billion, thirty-nine million, four hundred ninety-one thousand, two hundred sixteen".