2143744274832 has 20 divisors (see below), whose sum is σ = 5538006043440. Its totient is φ = 714581424928.

The previous prime is 2143744274831. The next prime is 2143744274839. The reversal of 2143744274832 is 2384724473412.

It is not an unprimeable number, because it can be changed into a prime (2143744274831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22330669482 + ... + 22330669577.

It is an arithmetic number, because the mean of its divisors is an integer number (276900302172).

Almost surely, 2^{2143744274832} is an apocalyptic number.

It is an amenable number.

2143744274832 is an abundant number, since it is smaller than the sum of its proper divisors (3394261768608).

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

2143744274832 is a wasteful number, since it uses less digits than its factorization.

2143744274832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44661339070 (or 44661339064 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 51.

The spelling of 2143744274832 in words is "two trillion, one hundred forty-three billion, seven hundred forty-four million, two hundred seventy-four thousand, eight hundred thirty-two".