477663945853840 has 40 divisors (see below), whose sum is σ = 1119313309363200. Its totient is φ = 189561124964736.

The previous prime is 477663945853789. The next prime is 477663945853849. The reversal of 477663945853840 is 48358549366774.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (79) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (477663945853849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23507073790 + ... + 23507094109.

It is an arithmetic number, because the mean of its divisors is an integer number (27982832734080).

Almost surely, 2^{477663945853840} is an apocalyptic number.

477663945853840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

477663945853840 is an abundant number, since it is smaller than the sum of its proper divisors (641649363509360).

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

477663945853840 is a wasteful number, since it uses less digits than its factorization.

477663945853840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47014168039 (or 47014168033 counting only the distinct ones).

The product of its (nonzero) digits is 14631321600, while the sum is 79.

The spelling of 477663945853840 in words is "four hundred seventy-seven trillion, six hundred sixty-three billion, nine hundred forty-five million, eight hundred fifty-three thousand, eight hundred forty".