9965049139 has 16 divisors (see below), whose sum is σ = 10405906560. Its totient is φ = 9535314240.

The previous prime is 9965049119. The next prime is 9965049163. The reversal of 9965049139 is 9319405699.

It is a de Polignac number, because none of the positive numbers 2^k-9965049139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9965049139.

It is not an unprimeable number, because it can be changed into a prime (9965049109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462484 + ... + 483550.

It is an arithmetic number, because the mean of its divisors is an integer number (650369160).

Almost surely, 2^9965049139 is an apocalyptic number.

9965049139 is a deficient number, since it is larger than the sum of its proper divisors (440857421).

9965049139 is a wasteful number, since it uses less digits than its factorization.

9965049139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The square root of 9965049139 is about 99825.0927322384. The cubic root of 9965049139 is about 2151.9217818978.

The spelling of 9965049139 in words is "nine billion, nine hundred sixty-five million, forty-nine thousand, one hundred thirty-nine".