447686349645 has 16 divisors (see below), whose sum is σ = 753998063040. Its totient is φ = 226199418624.

The previous prime is 447686349641. The next prime is 447686349659. The reversal of 447686349645 is 546943686744.

It is not a de Polignac number, because 447686349645 - 2² = 447686349641 is a prime.

It is a super-3 number, since 3×447686349645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447686349641) 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, 785414364 + ... + 785414933.

It is an arithmetic number, because the mean of its divisors is an integer number (47124878940).

Almost surely, 2^447686349645 is an apocalyptic number.

It is an amenable number.

447686349645 is a deficient number, since it is larger than the sum of its proper divisors (306311713395).

447686349645 is a wasteful number, since it uses less digits than its factorization.

447686349645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570829324.

The product of its digits is 418037760, while the sum is 66.

The spelling of 447686349645 in words is "four hundred forty-seven billion, six hundred eighty-six million, three hundred forty-nine thousand, six hundred forty-five".