447631504779 has 16 divisors (see below), whose sum is σ = 632028742272. Its totient is φ = 280831989888.

The previous prime is 447631504703. The next prime is 447631504807. The reversal of 447631504779 is 977405136744.

It is not a de Polignac number, because 447631504779 - 2⁷ = 447631504651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447631504079) 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, 125989 + ... + 954534.

It is an arithmetic number, because the mean of its divisors is an integer number (39501796392).

Almost surely, 2^447631504779 is an apocalyptic number.

447631504779 is a deficient number, since it is larger than the sum of its proper divisors (184397237493).

447631504779 is a wasteful number, since it uses less digits than its factorization.

447631504779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088666.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 447631504779 in words is "four hundred forty-seven billion, six hundred thirty-one million, five hundred four thousand, seven hundred seventy-nine".