542220243045631 has 16 divisors (see below), whose sum is σ = 575074547301888. Its totient is φ = 510139355061600.

The previous prime is 542220243045629. The next prime is 542220243045653. The reversal of 542220243045631 is 136540342022245.

It is not a de Polignac number, because 542220243045631 - 2¹ = 542220243045629 is a prime.

It is a super-2 number, since 2×542220243045631² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542220243045601) 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 15 ways as a sum of consecutive naturals, for example, 202055736 + ... + 204721666.

It is an arithmetic number, because the mean of its divisors is an integer number (35942159206368).

Almost surely, 2^{542220243045631} is an apocalyptic number.

542220243045631 is a deficient number, since it is larger than the sum of its proper divisors (32854304256257).

542220243045631 is a wasteful number, since it uses less digits than its factorization.

542220243045631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810982.

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 542220243045631 its reverse (136540342022245), we get a palindrome (678760585067876).

The spelling of 542220243045631 in words is "five hundred forty-two trillion, two hundred twenty billion, two hundred forty-three million, forty-five thousand, six hundred thirty-one".