9880865139 has 4 divisors (see below), whose sum is σ = 13174486856. Its totient is φ = 6587243424.

The previous prime is 9880865129. The next prime is 9880865149. The reversal of 9880865139 is 9315680889.

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

It is an interprime number because it is at equal distance from previous prime (9880865129) and next prime (9880865149).

It is not a de Polignac number, because 9880865139 - 2¹⁶ = 9880799603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9880865129) 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, 1646810854 + ... + 1646810859.

It is an arithmetic number, because the mean of its divisors is an integer number (3293621714).

Almost surely, 2^9880865139 is an apocalyptic number.

9880865139 is a deficient number, since it is larger than the sum of its proper divisors (3293621717).

9880865139 is a wasteful number, since it uses less digits than its factorization.

9880865139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293621716.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The square root of 9880865139 is about 99402.5409081679. The cubic root of 9880865139 is about 2145.8448784034.

The spelling of 9880865139 in words is "nine billion, eight hundred eighty million, eight hundred sixty-five thousand, one hundred thirty-nine".