542242050636 has 144 divisors (see below), whose sum is σ = 1559576712960. Its totient is φ = 145081347840.

The previous prime is 542242050619. The next prime is 542242050661. The reversal of 542242050636 is 636050242245.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 542242050594 and 542242050603.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15331 + ... + 1041498.

It is an arithmetic number, because the mean of its divisors is an integer number (10830393840).

Almost surely, 2^542242050636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542242050636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779788356480).

542242050636 is an abundant number, since it is smaller than the sum of its proper divisors (1017334662324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542242050636 is a wasteful number, since it uses less digits than its factorization.

542242050636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056896 (or 1056881 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 542242050636 in words is "five hundred forty-two billion, two hundred forty-two million, fifty thousand, six hundred thirty-six".