9872507869 has 32 divisors (see below), whose sum is σ = 12287310336. Its totient is φ = 7737845760.

The previous prime is 9872507861. The next prime is 9872507891. The reversal of 9872507869 is 9687052789.

9872507869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9872507869 - 2³ = 9872507861 is a prime.

It is a super-2 number, since 2×9872507869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872507861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4327009 + ... + 4329289.

It is an arithmetic number, because the mean of its divisors is an integer number (383978448).

Almost surely, 2^9872507869 is an apocalyptic number.

It is an amenable number.

9872507869 is a deficient number, since it is larger than the sum of its proper divisors (2414802467).

9872507869 is a wasteful number, since it uses less digits than its factorization.

9872507869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The square root of 9872507869 is about 99360.4945086326. The cubic root of 9872507869 is about 2145.2397200765.

The spelling of 9872507869 in words is "nine billion, eight hundred seventy-two million, five hundred seven thousand, eight hundred sixty-nine".