542457881360042 has 8 divisors (see below), whose sum is σ = 861550752748356. Its totient is φ = 255274297110592.

The previous prime is 542457881360027. The next prime is 542457881360081. The reversal of 542457881360042 is 240063188754245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 542440449703201 + 17431656841 = 23290351^2 + 132029^2 .

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

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, 7977321784673 + ... + 7977321784740.

Almost surely, 2^{542457881360042} is an apocalyptic number.

542457881360042 is a deficient number, since it is larger than the sum of its proper divisors (319092871388314).

542457881360042 is a wasteful number, since it uses less digits than its factorization.

542457881360042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15954643569432.

The product of its (nonzero) digits is 51609600, while the sum is 59.

The spelling of 542457881360042 in words is "five hundred forty-two trillion, four hundred fifty-seven billion, eight hundred eighty-one million, three hundred sixty thousand, forty-two".