477994784040 has 128 divisors (see below), whose sum is σ = 1648257984000. Its totient is φ = 123069913344.

The previous prime is 477994784027. The next prime is 477994784041. The reversal of 477994784040 is 40487499774.

477994784040 is a `hidden beast` number, since 4 + 7 + 79 + 94 + 78 + 404 + 0 = 666.

It is a Smith number, since the sum of its digits (63) 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 (477994784041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7599504 + ... + 7662143.

It is an arithmetic number, because the mean of its divisors is an integer number (12877015500).

Almost surely, 2^477994784040 is an apocalyptic number.

477994784040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

477994784040 is an abundant number, since it is smaller than the sum of its proper divisors (1170263199960).

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

477994784040 is a wasteful number, since it uses less digits than its factorization.

477994784040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261696 (or 15261686 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 63.

The spelling of 477994784040 in words is "four hundred seventy-seven billion, nine hundred ninety-four million, seven hundred eighty-four thousand, forty".