9946942074487 has 96 divisors (see below), whose sum is σ = 11967027609600. Its totient is φ = 8235787560000.

The previous prime is 9946942074479. The next prime is 9946942074569. The reversal of 9946942074487 is 7844702496499.

It is not a de Polignac number, because 9946942074487 - 2³ = 9946942074479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9946942074437) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3669103062 + ... + 3669105772.

It is an arithmetic number, because the mean of its divisors is an integer number (124656537600).

Almost surely, 2^{9946942074487} is an apocalyptic number.

9946942074487 is a deficient number, since it is larger than the sum of its proper divisors (2020085535113).

9946942074487 is a wasteful number, since it uses less digits than its factorization.

9946942074487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457 (or 3446 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 73.

The spelling of 9946942074487 in words is "nine trillion, nine hundred forty-six billion, nine hundred forty-two million, seventy-four thousand, four hundred eighty-seven".