9984784694405 has 16 divisors (see below), whose sum is σ = 11985462639360. Its totient is φ = 7985347523328.

The previous prime is 9984784694371. The next prime is 9984784694419. The reversal of 9984784694405 is 5044964874899.

It is a cyclic number.

It is not a de Polignac number, because 9984784694405 - 2⁸ = 9984784694149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244566824 + ... + 244607646.

It is an arithmetic number, because the mean of its divisors is an integer number (749091414960).

Almost surely, 2^{9984784694405} is an apocalyptic number.

It is an amenable number.

9984784694405 is a deficient number, since it is larger than the sum of its proper divisors (2000677944955).

9984784694405 is a wasteful number, since it uses less digits than its factorization.

9984784694405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54820.

The product of its (nonzero) digits is 2508226560, while the sum is 77.

The spelling of 9984784694405 in words is "nine trillion, nine hundred eighty-four billion, seven hundred eighty-four million, six hundred ninety-four thousand, four hundred five".