9869139709 has 8 divisors (see below), whose sum is σ = 11594513952. Its totient is φ = 8281795440.

The previous prime is 9869139689. The next prime is 9869139739. The reversal of 9869139709 is 9079319689.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9869139709 - 2¹¹ = 9869137661 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 (9869139739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34507339 + ... + 34507624.

It is an arithmetic number, because the mean of its divisors is an integer number (1449314244).

Almost surely, 2^9869139709 is an apocalyptic number.

It is an amenable number.

9869139709 is a deficient number, since it is larger than the sum of its proper divisors (1725374243).

9869139709 is a wasteful number, since it uses less digits than its factorization.

9869139709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69014987.

The product of its (nonzero) digits is 6613488, while the sum is 61.

The square root of 9869139709 is about 99343.5438717585. The cubic root of 9869139709 is about 2144.9957316672.

The spelling of 9869139709 in words is "nine billion, eight hundred sixty-nine million, one hundred thirty-nine thousand, seven hundred nine".