447738199872 has 56 divisors (see below), whose sum is σ = 1191185722272. Its totient is φ = 148421491200.

The previous prime is 447738199849. The next prime is 447738199879. The reversal of 447738199872 is 278991837744.

It is a junction number, because it is equal to n+sod(n) for n = 447738199797 and 447738199806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447738199879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6407154 + ... + 6476657.

It is an arithmetic number, because the mean of its divisors is an integer number (21271173612).

Almost surely, 2^447738199872 is an apocalyptic number.

It is an amenable number.

447738199872 is an abundant number, since it is smaller than the sum of its proper divisors (743447522400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447738199872 is a wasteful number, since it uses less digits than its factorization.

447738199872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884007 (or 12883997 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 69.

The spelling of 447738199872 in words is "four hundred forty-seven billion, seven hundred thirty-eight million, one hundred ninety-nine thousand, eight hundred seventy-two".