947963280808 has 8 divisors (see below), whose sum is σ = 1777431151530. Its totient is φ = 473981640400.

The previous prime is 947963280749. The next prime is 947963280839. The reversal of 947963280808 is 808082369749.

It can be written as a sum of positive squares in only one way, i.e., 858072447684 + 89890833124 = 926322^2 + 299818^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×947963280808² (a number of 25 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 947963280808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59247705043 + ... + 59247705058.

Almost surely, 2^947963280808 is an apocalyptic number.

It is an amenable number.

947963280808 is a deficient number, since it is larger than the sum of its proper divisors (829467870722).

947963280808 is a wasteful number, since it uses less digits than its factorization.

947963280808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118495410107 (or 118495410103 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 947963280808 in words is "nine hundred forty-seven billion, nine hundred sixty-three million, two hundred eighty thousand, eight hundred eight".