9871268881 has 4 divisors (see below), whose sum is σ = 9871485552. Its totient is φ = 9871052212.

The previous prime is 9871268839. The next prime is 9871268917. The reversal of 9871268881 is 1888621789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9871268881 - 2¹¹ = 9871266833 is a prime.

It is a super-2 number, since 2×9871268881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9871268821) 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, 10615 + ... + 140908.

It is an arithmetic number, because the mean of its divisors is an integer number (2467871388).

Almost surely, 2^9871268881 is an apocalyptic number.

It is an amenable number.

9871268881 is a deficient number, since it is larger than the sum of its proper divisors (216671).

9871268881 is a wasteful number, since it uses less digits than its factorization.

9871268881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216670.

The product of its digits is 3096576, while the sum is 58.

The square root of 9871268881 is about 99354.2595010400. The cubic root of 9871268881 is about 2145.1499746439.

The spelling of 9871268881 in words is "nine billion, eight hundred seventy-one million, two hundred sixty-eight thousand, eight hundred eighty-one".