42543621457726 has 8 divisors (see below), whose sum is σ = 63819735071904. Its totient is φ = 21270376433760.

The previous prime is 42543621457709. The next prime is 42543621457741. The reversal of 42543621457726 is 62775412634524.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717110475 + ... + 717169798.

It is an arithmetic number, because the mean of its divisors is an integer number (7977466883988).

Almost surely, 2^{42543621457726} is an apocalyptic number.

42543621457726 is a deficient number, since it is larger than the sum of its proper divisors (21276113614178).

42543621457726 is a wasteful number, since it uses less digits than its factorization.

42543621457726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434295106.

The product of its digits is 67737600, while the sum is 58.

The spelling of 42543621457726 in words is "forty-two trillion, five hundred forty-three billion, six hundred twenty-one million, four hundred fifty-seven thousand, seven hundred twenty-six".