9954638847999 has 12 divisors (see below), whose sum is σ = 15135708190200. Its totient is φ = 6287140324944.

The previous prime is 9954638847953. The next prime is 9954638848043. The reversal of 9954638847999 is 9997488364599.

9954638847999 is a `hidden beast` number, since 9 + 9 + 5 + 46 + 3 + 8 + 8 + 479 + 99 = 666.

It is not a de Polignac number, because 9954638847999 - 2²⁰ = 9954637799423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9954638842999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29107130964 + ... + 29107131305.

It is an arithmetic number, because the mean of its divisors is an integer number (1261309015850).

Almost surely, 2^{9954638847999} is an apocalyptic number.

9954638847999 is a deficient number, since it is larger than the sum of its proper divisors (5181069342201).

9954638847999 is a wasteful number, since it uses less digits than its factorization.

9954638847999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58214262294 (or 58214262291 counting only the distinct ones).

The product of its digits is 38093690880, while the sum is 90.

The spelling of 9954638847999 in words is "nine trillion, nine hundred fifty-four billion, six hundred thirty-eight million, eight hundred forty-seven thousand, nine hundred ninety-nine".