2142548456643 has 72 divisors (see below), whose sum is σ = 3669374178288. Its totient is φ = 1200965971968.

The previous prime is 2142548456603. The next prime is 2142548456701. The reversal of 2142548456643 is 3466548452412.

2142548456643 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 548 + 4 + 56 + 6 + 43 = 666.

It is not a de Polignac number, because 2142548456643 - 2²⁶ = 2142481347779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142548456643.

It is not an unprimeable number, because it can be changed into a prime (2142548456603) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4612180 + ... + 5055422.

It is an arithmetic number, because the mean of its divisors is an integer number (50963530254).

Almost surely, 2^{2142548456643} is an apocalyptic number.

2142548456643 is a deficient number, since it is larger than the sum of its proper divisors (1526825721645).

2142548456643 is a wasteful number, since it uses less digits than its factorization.

2142548456643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443473 (or 443463 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 54.

The spelling of 2142548456643 in words is "two trillion, one hundred forty-two billion, five hundred forty-eight million, four hundred fifty-six thousand, six hundred forty-three".