9974943993393 has 24 divisors (see below), whose sum is σ = 14481791139816. Its totient is φ = 6616023590400.

The previous prime is 9974943993389. The next prime is 9974943993407. The reversal of 9974943993393 is 3933993494799.

9974943993393 is a `hidden beast` number, since 9 + 9 + 7 + 4 + 9 + 439 + 93 + 3 + 93 = 666.

9974943993393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9406538072064 + 568405921329 = 3067008^2 + 753927^2 .

It is not a de Polignac number, because 9974943993393 - 2² = 9974943993389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9974943953393) 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, 101403673 + ... + 101501993.

It is an arithmetic number, because the mean of its divisors is an integer number (603407964159).

Almost surely, 2^{9974943993393} is an apocalyptic number.

It is an amenable number.

9974943993393 is a deficient number, since it is larger than the sum of its proper divisors (4506847146423).

9974943993393 is a wasteful number, since it uses less digits than its factorization.

9974943993393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155745 (or 155742 counting only the distinct ones).

The product of its digits is 4821232752, while the sum is 81.

The spelling of 9974943993393 in words is "nine trillion, nine hundred seventy-four billion, nine hundred forty-three million, nine hundred ninety-three thousand, three hundred ninety-three".