447429102505 has 128 divisors (see below), whose sum is σ = 697950535680. Its totient is φ = 267218784000.

The previous prime is 447429102487. The next prime is 447429102511. The reversal of 447429102505 is 505201924744.

It is not a de Polignac number, because 447429102505 - 2²³ = 447420713897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 647509210 + ... + 647509900.

It is an arithmetic number, because the mean of its divisors is an integer number (5452738560).

Almost surely, 2^447429102505 is an apocalyptic number.

It is an amenable number.

447429102505 is a deficient number, since it is larger than the sum of its proper divisors (250521433175).

447429102505 is a wasteful number, since it uses less digits than its factorization.

447429102505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 447429102505 in words is "four hundred forty-seven billion, four hundred twenty-nine million, one hundred two thousand, five hundred five".