947806421996 has 18 divisors (see below), whose sum is σ = 1929463073748. Its totient is φ = 406202752200.

The previous prime is 947806421983. The next prime is 947806421999. The reversal of 947806421996 is 699124608749.

It is not an unprimeable number, because it can be changed into a prime (947806421999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2417873330 + ... + 2417873721.

It is an arithmetic number, because the mean of its divisors is an integer number (107192392986).

Almost surely, 2^947806421996 is an apocalyptic number.

It is an amenable number.

947806421996 is an abundant number, since it is smaller than the sum of its proper divisors (981656651752).

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

947806421996 is a wasteful number, since it uses less digits than its factorization.

947806421996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835747069 (or 4835747060 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 947806421996 in words is "nine hundred forty-seven billion, eight hundred six million, four hundred twenty-one thousand, nine hundred ninety-six".