542420351444 has 6 divisors (see below), whose sum is σ = 949235615034. Its totient is φ = 271210175720.

The previous prime is 542420351329. The next prime is 542420351471. The reversal of 542420351444 is 444153024245.

It can be written as a sum of positive squares in only one way, i.e., 466745843344 + 75674508100 = 683188^2 + 275090^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542420351398 and 542420351407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67802543927 + ... + 67802543934.

It is an arithmetic number, because the mean of its divisors is an integer number (158205935839).

Almost surely, 2^542420351444 is an apocalyptic number.

It is an amenable number.

542420351444 is a deficient number, since it is larger than the sum of its proper divisors (406815263590).

542420351444 is a wasteful number, since it uses less digits than its factorization.

542420351444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135605087865 (or 135605087863 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 542420351444 its reverse (444153024245), we get a palindrome (986573375689).

The spelling of 542420351444 in words is "five hundred forty-two billion, four hundred twenty million, three hundred fifty-one thousand, four hundred forty-four".