9902710139 has 8 divisors (see below), whose sum is σ = 11417537760. Its totient is φ = 8412921216.

The previous prime is 9902710133. The next prime is 9902710183. The reversal of 9902710139 is 9310172099.

9902710139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-9902710139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9902710096 and 9902710105.

It is not an unprimeable number, because it can be changed into a prime (9902710133) 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, 6258824 + ... + 6260405.

It is an arithmetic number, because the mean of its divisors is an integer number (1427192220).

Almost surely, 2^9902710139 is an apocalyptic number.

9902710139 is a deficient number, since it is larger than the sum of its proper divisors (1514827621).

9902710139 is a wasteful number, since it uses less digits than its factorization.

9902710139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519349.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 9902710139 is about 99512.3617396351. The cubic root of 9902710139 is about 2147.4250868163.

The spelling of 9902710139 in words is "nine billion, nine hundred two million, seven hundred ten thousand, one hundred thirty-nine".