542415383514245 has 4 divisors (see below), whose sum is σ = 650898460217100. Its totient is φ = 433932306811392.

The previous prime is 542415383514211. The next prime is 542415383514247.

542415383514245 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 138831029544964 + 403584353969281 = 11782658^2 + 20089409^2 .

It is a cyclic number.

It is not a de Polignac number, because 542415383514245 - 2²⁰ = 542415382465669 is a prime.

It is a super-2 number, since 2×542415383514245² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542415383514247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54241538351420 + ... + 54241538351429.

It is an arithmetic number, because the mean of its divisors is an integer number (162724615054275).

Almost surely, 2^{542415383514245} is an apocalyptic number.

It is an amenable number.

542415383514245 is a deficient number, since it is larger than the sum of its proper divisors (108483076702855).

542415383514245 is a wasteful number, since it uses less digits than its factorization.

542415383514245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108483076702854.

The product of its digits is 46080000, while the sum is 56.

The spelling of 542415383514245 in words is "five hundred forty-two trillion, four hundred fifteen billion, three hundred eighty-three million, five hundred fourteen thousand, two hundred forty-five".