2143546453412 has 108 divisors (see below), whose sum is σ = 4746359458260. Its totient is φ = 839590214400.

The previous prime is 2143546453387. The next prime is 2143546453421.

2143546453412 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 993024208036 + 1150522245376 = 996506^2 + 1072624^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25950914 + ... + 26033382.

Almost surely, 2^{2143546453412} 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 2143546453412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2373179729130).

2143546453412 is an abundant number, since it is smaller than the sum of its proper divisors (2602813004848).

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

2143546453412 is a wasteful number, since it uses less digits than its factorization.

2143546453412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82702 (or 82592 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

The spelling of 2143546453412 in words is "two trillion, one hundred forty-three billion, five hundred forty-six million, four hundred fifty-three thousand, four hundred twelve".