947712389388 has 12 divisors (see below), whose sum is σ = 2211328908600. Its totient is φ = 315904129792.

The previous prime is 947712389383. The next prime is 947712389389. The reversal of 947712389388 is 883983217749.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (947712389383) 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, 39488016213 + ... + 39488016236.

It is an arithmetic number, because the mean of its divisors is an integer number (184277409050).

Almost surely, 2^947712389388 is an apocalyptic number.

It is an amenable number.

947712389388 is an abundant number, since it is smaller than the sum of its proper divisors (1263616519212).

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

947712389388 is a wasteful number, since it uses less digits than its factorization.

947712389388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78976032456 (or 78976032454 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 69.

The spelling of 947712389388 in words is "nine hundred forty-seven billion, seven hundred twelve million, three hundred eighty-nine thousand, three hundred eighty-eight".