9878125539216 has 80 divisors (see below), whose sum is σ = 27929032927488. Its totient is φ = 2983620931200.

The previous prime is 9878125539209. The next prime is 9878125539283. The reversal of 9878125539216 is 6129355218789.

It is a super-2 number, since 2×9878125539216² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30307890 + ... + 30632081.

Almost surely, 2^{9878125539216} is an apocalyptic number.

It is an amenable number.

9878125539216 is an abundant number, since it is smaller than the sum of its proper divisors (18050907388272).

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

9878125539216 is a wasteful number, since it uses less digits than its factorization.

9878125539216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60940300 (or 60940294 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 66.

The spelling of 9878125539216 in words is "nine trillion, eight hundred seventy-eight billion, one hundred twenty-five million, five hundred thirty-nine thousand, two hundred sixteen".