542637505418 has 8 divisors (see below), whose sum is σ = 814115466948. Its totient is φ = 271265683104.

The previous prime is 542637505409. The next prime is 542637505427. The reversal of 542637505418 is 814505736245.

It is an interprime number because it is at equal distance from previous prime (542637505409) and next prime (542637505427).

It can be written as a sum of positive squares in 2 ways, for example, as 520508860369 + 22128645049 = 721463^2 + 148757^2 .

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, 26522021 + ... + 26542472.

Almost surely, 2^542637505418 is an apocalyptic number.

542637505418 is a deficient number, since it is larger than the sum of its proper divisors (271477961530).

542637505418 is a wasteful number, since it uses less digits than its factorization.

542637505418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53069608.

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 542637505418 in words is "five hundred forty-two billion, six hundred thirty-seven million, five hundred five thousand, four hundred eighteen".