542426661532 has 72 divisors (see below), whose sum is σ = 1131821204976. Its totient is φ = 226677330432.

The previous prime is 542426661527. The next prime is 542426661551. The reversal of 542426661532 is 235166624245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4943538 + ... + 5052070.

It is an arithmetic number, because the mean of its divisors is an integer number (15719738958).

Almost surely, 2^542426661532 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 542426661532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565910602488).

542426661532 is an abundant number, since it is smaller than the sum of its proper divisors (589394543444).

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

542426661532 is a wasteful number, since it uses less digits than its factorization.

542426661532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109187 (or 109178 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 46.

The spelling of 542426661532 in words is "five hundred forty-two billion, four hundred twenty-six million, six hundred sixty-one thousand, five hundred thirty-two".