447651940797 has 72 divisors (see below), whose sum is σ = 723251629440. Its totient is φ = 273601573200.

The previous prime is 447651940787. The next prime is 447651940831. The reversal of 447651940797 is 797049156744.

447651940797 is a `hidden beast` number, since 4 + 4 + 7 + 6 + 519 + 40 + 79 + 7 = 666.

It is not a de Polignac number, because 447651940797 - 2⁴ = 447651940781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447651940727) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9342972 + ... + 9390762.

It is an arithmetic number, because the mean of its divisors is an integer number (10045161520).

Almost surely, 2^447651940797 is an apocalyptic number.

It is an amenable number.

447651940797 is a deficient number, since it is larger than the sum of its proper divisors (275599688643).

447651940797 is a wasteful number, since it uses less digits than its factorization.

447651940797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47900 (or 47844 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 447651940797 in words is "four hundred forty-seven billion, six hundred fifty-one million, nine hundred forty thousand, seven hundred ninety-seven".