9145878331100 has 72 divisors (see below), whose sum is σ = 22779125355168. Its totient is φ = 3122271590400.

The previous prime is 9145878331097. The next prime is 9145878331127. The reversal of 9145878331100 is 11338785419.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27874541 + ... + 28200740.

It is an arithmetic number, because the mean of its divisors is an integer number (316376741044).

Almost surely, 2^{9145878331100} is an apocalyptic number.

It is an amenable number.

9145878331100 is an abundant number, since it is smaller than the sum of its proper divisors (13633247024068).

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

9145878331100 is a wasteful number, since it uses less digits than its factorization.

9145878331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56075535 (or 56075528 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 9145878331100 in words is "nine trillion, one hundred forty-five billion, eight hundred seventy-eight million, three hundred thirty-one thousand, one hundred".