9947687428048 has 20 divisors (see below), whose sum is σ = 19294801000128. Its totient is φ = 4968383944160.

The previous prime is 9947687427967. The next prime is 9947687428067. The reversal of 9947687428048 is 8408247867499.

It is a super-2 number, since 2×9947687428048² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 341220586 + ... + 341249737.

Almost surely, 2^{9947687428048} is an apocalyptic number.

It is an amenable number.

9947687428048 is a deficient number, since it is larger than the sum of its proper divisors (9347113572080).

9947687428048 is a wasteful number, since it uses less digits than its factorization.

9947687428048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682471242 (or 682471236 counting only the distinct ones).

The product of its (nonzero) digits is 1560674304, while the sum is 76.

The spelling of 9947687428048 in words is "nine trillion, nine hundred forty-seven billion, six hundred eighty-seven million, four hundred twenty-eight thousand, forty-eight".