542679545976245 has 4 divisors (see below), whose sum is σ = 651215455171500. Its totient is φ = 434143636780992.

The previous prime is 542679545976229. The next prime is 542679545976277.

542679545976245 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153759851200036 + 388919694776209 = 12399994^2 + 19721047^2 .

It is a cyclic number.

It is not a de Polignac number, because 542679545976245 - 2⁴ = 542679545976229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542679545976245.

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, 54267954597620 + ... + 54267954597629.

It is an arithmetic number, because the mean of its divisors is an integer number (162803863792875).

Almost surely, 2^{542679545976245} is an apocalyptic number.

It is an amenable number.

542679545976245 is a deficient number, since it is larger than the sum of its proper divisors (108535909195255).

542679545976245 is a wasteful number, since it uses less digits than its factorization.

542679545976245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108535909195254.

The product of its digits is 22861440000, while the sum is 80.

The spelling of 542679545976245 in words is "five hundred forty-two trillion, six hundred seventy-nine billion, five hundred forty-five million, nine hundred seventy-six thousand, two hundred forty-five".