447815685408 has 96 divisors (see below), whose sum is σ = 1446789165696. Its totient is φ = 118105233408.

The previous prime is 447815685337. The next prime is 447815685409. The reversal of 447815685408 is 804586518744.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (447815685409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25621741 + ... + 25639212.

It is an arithmetic number, because the mean of its divisors is an integer number (15070720476).

Almost surely, 2^447815685408 is an apocalyptic number.

447815685408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

447815685408 is an abundant number, since it is smaller than the sum of its proper divisors (998973480288).

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

447815685408 is a wasteful number, since it uses less digits than its factorization.

447815685408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51260986 (or 51260978 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 60.

The spelling of 447815685408 in words is "four hundred forty-seven billion, eight hundred fifteen million, six hundred eighty-five thousand, four hundred eight".