542044541643 has 16 divisors (see below), whose sum is σ = 788501952000. Its totient is φ = 328481206880.

The previous prime is 542044541617. The next prime is 542044541693. The reversal of 542044541643 is 346145440245.

It is a cyclic number.

It is not a de Polignac number, because 542044541643 - 2⁶ = 542044541579 is a prime.

It is a super-2 number, since 2×542044541643² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542044541595 and 542044541604.

It is not an unprimeable number, because it can be changed into a prime (542044541603) 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 15 ways as a sum of consecutive naturals, for example, 404148 + ... + 1116881.

It is an arithmetic number, because the mean of its divisors is an integer number (49281372000).

Almost surely, 2^542044541643 is an apocalyptic number.

542044541643 is a deficient number, since it is larger than the sum of its proper divisors (246457410357).

542044541643 is a wasteful number, since it uses less digits than its factorization.

542044541643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531842.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 542044541643 its reverse (346145440245), we get a palindrome (888189981888).

The spelling of 542044541643 in words is "five hundred forty-two billion, forty-four million, five hundred forty-one thousand, six hundred forty-three".