542014212665021 has 4 divisors (see below), whose sum is σ = 542116847438844. Its totient is φ = 541911577891200.

The previous prime is 542014212664927. The next prime is 542014212665033. The reversal of 542014212665021 is 120566212410245.

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 127548540600121 + 414465672064900 = 11293739^2 + 20358430^2 .

It is a cyclic number.

It is not a de Polignac number, because 542014212665021 - 2¹⁴ = 542014212648637 is a prime.

It is a super-2 number, since 2×542014212665021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542014212665021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542014212625021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51317378990 + ... + 51317389551.

It is an arithmetic number, because the mean of its divisors is an integer number (135529211859711).

Almost surely, 2^{542014212665021} is an apocalyptic number.

It is an amenable number.

542014212665021 is a deficient number, since it is larger than the sum of its proper divisors (102634773823).

542014212665021 is a wasteful number, since it uses less digits than its factorization.

542014212665021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102634773822.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 542014212665021 in words is "five hundred forty-two trillion, fourteen billion, two hundred twelve million, six hundred sixty-five thousand, twenty-one".