9997746647013 has 24 divisors (see below), whose sum is σ = 14446549260000. Its totient is φ = 6662691205344.

The previous prime is 9997746646973. The next prime is 9997746647029. The reversal of 9997746647013 is 3107466477999.

9997746647013 is a `hidden beast` number, since 9 + 9 + 97 + 7 + 4 + 66 + 470 + 1 + 3 = 666.

9997746647013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9997746647013 - 2¹⁰ = 9997746645989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997746643013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448177606 + ... + 448199912.

It is an arithmetic number, because the mean of its divisors is an integer number (601939552500).

Almost surely, 2^{9997746647013} is an apocalyptic number.

It is an amenable number.

9997746647013 is a deficient number, since it is larger than the sum of its proper divisors (4448802612987).

9997746647013 is a wasteful number, since it uses less digits than its factorization.

9997746647013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38561 (or 38558 counting only the distinct ones).

The product of its (nonzero) digits is 432081216, while the sum is 72.

The spelling of 9997746647013 in words is "nine trillion, nine hundred ninety-seven billion, seven hundred forty-six million, six hundred forty-seven thousand, thirteen".