12147044251040 has 96 divisors (see below), whose sum is σ = 28996268051520. Its totient is φ = 4808224825344.

The previous prime is 12147044251009. The next prime is 12147044251091. The reversal of 12147044251040 is 4015244074121.

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, 171972851 + ... + 172043469.

It is an arithmetic number, because the mean of its divisors is an integer number (302044458870).

Almost surely, 2^{12147044251040} is an apocalyptic number.

12147044251040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12147044251040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14498134025760).

12147044251040 is an abundant number, since it is smaller than the sum of its proper divisors (16849223800480).

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

12147044251040 is a wasteful number, since it uses less digits than its factorization.

12147044251040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81814 (or 81806 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

The spelling of 12147044251040 in words is "twelve trillion, one hundred forty-seven billion, forty-four million, two hundred fifty-one thousand, forty".