26402043543 has 8 divisors (see below), whose sum is σ = 35204374656. Its totient is φ = 17600537400.

The previous prime is 26402043509. The next prime is 26402043581. The reversal of 26402043543 is 34534020462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26402043543 - 2²⁶ = 26334934679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402043583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127243 + ... + 262668.

It is an arithmetic number, because the mean of its divisors is an integer number (4400546832).

Almost surely, 2^26402043543 is an apocalyptic number.

26402043543 is a deficient number, since it is larger than the sum of its proper divisors (8802331113).

26402043543 is a wasteful number, since it uses less digits than its factorization.

26402043543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412485.

The product of its (nonzero) digits is 69120, while the sum is 33.

The spelling of 26402043543 in words is "twenty-six billion, four hundred two million, forty-three thousand, five hundred forty-three".