542618626816245 has 32 divisors (see below), whose sum is σ = 992676065137920. Its totient is φ = 247939442519040.

The previous prime is 542618626816199. The next prime is 542618626816303.

It is a happy number.

542618626816245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542618626816245 - 2¹⁷ = 542618626685173 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1195468710 + ... + 1195922519.

It is an arithmetic number, because the mean of its divisors is an integer number (31021127035560).

Almost surely, 2^{542618626816245} is an apocalyptic number.

It is an amenable number.

542618626816245 is a deficient number, since it is larger than the sum of its proper divisors (450057438321675).

542618626816245 is a wasteful number, since it uses less digits than its factorization.

542618626816245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391393405.

The product of its digits is 265420800, while the sum is 66.

The spelling of 542618626816245 in words is "five hundred forty-two trillion, six hundred eighteen billion, six hundred twenty-six million, eight hundred sixteen thousand, two hundred forty-five".