2478167726543 has 4 divisors (see below), whose sum is σ = 2480184137640. Its totient is φ = 2476151315448.

The previous prime is 2478167726537. The next prime is 2478167726627. The reversal of 2478167726543 is 3456277618742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2478167726543 - 2⁴ = 2478167726527 is a prime.

It is a super-2 number, since 2×2478167726543² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478167726743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008203705 + ... + 1008206162.

It is an arithmetic number, because the mean of its divisors is an integer number (620046034410).

Almost surely, 2^{2478167726543} is an apocalyptic number.

2478167726543 is a deficient number, since it is larger than the sum of its proper divisors (2016411097).

2478167726543 is a wasteful number, since it uses less digits than its factorization.

2478167726543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016411096.

The product of its digits is 94832640, while the sum is 62.

The spelling of 2478167726543 in words is "two trillion, four hundred seventy-eight billion, one hundred sixty-seven million, seven hundred twenty-six thousand, five hundred forty-three".