9878631471097 has 4 divisors (see below), whose sum is σ = 10398559443280. Its totient is φ = 9358703498916.

The previous prime is 9878631471089. The next prime is 9878631471119. The reversal of 9878631471097 is 7901741368789.

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 9878631471097 - 2³ = 9878631471089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9878631421097) 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, 259963986063 + ... + 259963986100.

It is an arithmetic number, because the mean of its divisors is an integer number (2599639860820).

Almost surely, 2^{9878631471097} is an apocalyptic number.

It is an amenable number.

9878631471097 is a deficient number, since it is larger than the sum of its proper divisors (519927972183).

9878631471097 is a wasteful number, since it uses less digits than its factorization.

9878631471097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519927972182.

The product of its (nonzero) digits is 128024064, while the sum is 70.

The spelling of 9878631471097 in words is "nine trillion, eight hundred seventy-eight billion, six hundred thirty-one million, four hundred seventy-one thousand, ninety-seven".