9947266052864 has 36 divisors (see below), whose sum is σ = 22692200687184. Its totient is φ = 4263114021888.

The previous prime is 9947266052827. The next prime is 9947266052879. The reversal of 9947266052864 is 4682506627499.

It is a junction number, because it is equal to n+sod(n) for n = 9947266052794 and 9947266052803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775463067 + ... + 2775466650.

Almost surely, 2^{9947266052864} is an apocalyptic number.

It is an amenable number.

9947266052864 is an abundant number, since it is smaller than the sum of its proper divisors (12744934634320).

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

9947266052864 is an equidigital number, since it uses as much as digits as its factorization.

9947266052864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550929740 (or 5550929726 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 68.

The spelling of 9947266052864 in words is "nine trillion, nine hundred forty-seven billion, two hundred sixty-six million, fifty-two thousand, eight hundred sixty-four".