2143645047936 has 768 divisors, whose sum is σ = 7449810001920. Its totient is φ = 578816409600.

The previous prime is 2143645047911. The next prime is 2143645047941. The reversal of 2143645047936 is 6397405463412.

2143645047936 is a `hidden beast` number, since 2 + 1 + 4 + 3 + 64 + 504 + 79 + 3 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2194109080 + ... + 2194110056.

It is an arithmetic number, because the mean of its divisors is an integer number (9700273440).

Almost surely, 2^{2143645047936} 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 2143645047936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3724905000960).

2143645047936 is an abundant number, since it is smaller than the sum of its proper divisors (5306164953984).

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

2143645047936 is a wasteful number, since it uses less digits than its factorization.

2143645047936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 2143645047936 in words is "two trillion, one hundred forty-three billion, six hundred forty-five million, forty-seven thousand, nine hundred thirty-six".