9447455980 has 12 divisors (see below), whose sum is σ = 19839657600. Its totient is φ = 3778982384.

The previous prime is 9447455923. The next prime is 9447455987. The reversal of 9447455980 is 895547449.

It is not an unprimeable number, because it can be changed into a prime (9447455987) 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, 236186380 + ... + 236186419.

It is an arithmetic number, because the mean of its divisors is an integer number (1653304800).

Almost surely, 2^9447455980 is an apocalyptic number.

It is an amenable number.

9447455980 is an abundant number, since it is smaller than the sum of its proper divisors (10392201620).

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

9447455980 is a wasteful number, since it uses less digits than its factorization.

9447455980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472372808 (or 472372806 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The square root of 9447455980 is about 97198.0245684037. The cubic root of 9447455980 is about 2113.9998833444. Note that the first 3 decimals are identical.

The spelling of 9447455980 in words is "nine billion, four hundred forty-seven million, four hundred fifty-five thousand, nine hundred eighty".