447740711448 has 16 divisors (see below), whose sum is σ = 1119351778680. Its totient is φ = 149246903808.

The previous prime is 447740711447. The next prime is 447740711471. The reversal of 447740711448 is 844117047744.

It is a happy number.

It is a super-2 number, since 2×447740711448² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 447740711448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447740711447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9327931465 + ... + 9327931512.

Almost surely, 2^447740711448 is an apocalyptic number.

It is an amenable number.

447740711448 is an abundant number, since it is smaller than the sum of its proper divisors (671611067232).

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

447740711448 is a wasteful number, since it uses less digits than its factorization.

447740711448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18655862986 (or 18655862982 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 51.

The spelling of 447740711448 in words is "four hundred forty-seven billion, seven hundred forty million, seven hundred eleven thousand, four hundred forty-eight".