447766991604 has 24 divisors (see below), whose sum is σ = 1160877385920. Its totient is φ = 149255663832.

The previous prime is 447766991603. The next prime is 447766991627. The reversal of 447766991604 is 406199667744.

447766991604 is a `hidden beast` number, since 4 + 477 + 66 + 99 + 16 + 0 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447766991603) 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, 2072995224 + ... + 2072995439.

It is an arithmetic number, because the mean of its divisors is an integer number (48369891080).

Almost surely, 2^447766991604 is an apocalyptic number.

It is an amenable number.

447766991604 is an abundant number, since it is smaller than the sum of its proper divisors (713110394316).

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

447766991604 is a wasteful number, since it uses less digits than its factorization.

447766991604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145990676 (or 4145990668 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 63.

The spelling of 447766991604 in words is "four hundred forty-seven billion, seven hundred sixty-six million, nine hundred ninety-one thousand, six hundred four".