9994153439 has 4 divisors (see below), whose sum is σ = 10226575656. Its totient is φ = 9761731224.

The previous prime is 9994153417. The next prime is 9994153471. The reversal of 9994153439 is 9343514999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9994153439 - 2¹² = 9994149343 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 (9994153639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116211044 + ... + 116211129.

It is an arithmetic number, because the mean of its divisors is an integer number (2556643914).

Almost surely, 2^9994153439 is an apocalyptic number.

9994153439 is a deficient number, since it is larger than the sum of its proper divisors (232422217).

9994153439 is a wasteful number, since it uses less digits than its factorization.

9994153439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232422216.

The product of its digits is 4723920, while the sum is 56.

The square root of 9994153439 is about 99970.7629209660. The cubic root of 9994153439 is about 2154.0147403847.

The spelling of 9994153439 in words is "nine billion, nine hundred ninety-four million, one hundred fifty-three thousand, four hundred thirty-nine".