542044610121 has 16 divisors (see below), whose sum is σ = 826096953728. Its totient is φ = 309693196800.

The previous prime is 542044610119. The next prime is 542044610161. The reversal of 542044610121 is 121016440245.

It is not a de Polignac number, because 542044610121 - 2¹ = 542044610119 is a prime.

It is a super-2 number, since 2×542044610121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542044610161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797640 + ... + 2077401.

It is an arithmetic number, because the mean of its divisors is an integer number (51631059608).

Almost surely, 2^542044610121 is an apocalyptic number.

It is an amenable number.

542044610121 is a deficient number, since it is larger than the sum of its proper divisors (284052343607).

542044610121 is a wasteful number, since it uses less digits than its factorization.

542044610121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881712.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 542044610121 in words is "five hundred forty-two billion, forty-four million, six hundred ten thousand, one hundred twenty-one".