9871273909432 has 128 divisors (see below), whose sum is σ = 20527326167040. Its totient is φ = 4421648770560.

The previous prime is 9871273909411. The next prime is 9871273909433. The reversal of 9871273909432 is 2349093721789.

It is a super-3 number, since 3×9871273909432³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9871273909433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1965995082 + ... + 1966000102.

It is an arithmetic number, because the mean of its divisors is an integer number (160369735680).

Almost surely, 2^{9871273909432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9871273909432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10263663083520).

9871273909432 is an abundant number, since it is smaller than the sum of its proper divisors (10656052257608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9871273909432 is a wasteful number, since it uses less digits than its factorization.

9871273909432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381 (or 8377 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 9871273909432 in words is "nine trillion, eight hundred seventy-one billion, two hundred seventy-three million, nine hundred nine thousand, four hundred thirty-two".