542561432126 has 16 divisors (see below), whose sum is σ = 949894788096. Its totient is φ = 227578959096.

The previous prime is 542561432123. The next prime is 542561432177. The reversal of 542561432126 is 621234165245.

It is a super-2 number, since 2×542561432126² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542561432123) 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 7 ways as a sum of consecutive naturals, for example, 412280066 + ... + 412281381.

It is an arithmetic number, because the mean of its divisors is an integer number (59368424256).

Almost surely, 2^542561432126 is an apocalyptic number.

542561432126 is a deficient number, since it is larger than the sum of its proper divisors (407333355970).

542561432126 is a wasteful number, since it uses less digits than its factorization.

542561432126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824561503.

The product of its digits is 345600, while the sum is 41.

The spelling of 542561432126 in words is "five hundred forty-two billion, five hundred sixty-one million, four hundred thirty-two thousand, one hundred twenty-six".