447278019802 has 8 divisors (see below), whose sum is σ = 686519751456. Its totient is φ = 218438102652.

The previous prime is 447278019791. The next prime is 447278019857. The reversal of 447278019802 is 208910872744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 447278019802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600453518 + ... + 2600453689.

It is an arithmetic number, because the mean of its divisors is an integer number (85814968932).

Almost surely, 2^447278019802 is an apocalyptic number.

447278019802 is a deficient number, since it is larger than the sum of its proper divisors (239241731654).

447278019802 is a wasteful number, since it uses less digits than its factorization.

447278019802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200907252.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 447278019802 in words is "four hundred forty-seven billion, two hundred seventy-eight million, nineteen thousand, eight hundred two".