447140595943 has 4 divisors (see below), whose sum is σ = 447416780760. Its totient is φ = 446864411128.

The previous prime is 447140595919. The next prime is 447140595959. The reversal of 447140595943 is 349595041744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447140595943 is a prime.

It is a super-2 number, since 2×447140595943² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447140595043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138089980 + ... + 138093217.

It is an arithmetic number, because the mean of its divisors is an integer number (111854195190).

Almost surely, 2^447140595943 is an apocalyptic number.

447140595943 is a deficient number, since it is larger than the sum of its proper divisors (276184817).

447140595943 is a wasteful number, since it uses less digits than its factorization.

447140595943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276184816.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 447140595943 in words is "four hundred forty-seven billion, one hundred forty million, five hundred ninety-five thousand, nine hundred forty-three".