542421320020 has 24 divisors (see below), whose sum is σ = 1139308380000. Its totient is φ = 216925936032.

The previous prime is 542421319969. The next prime is 542421320027. The reversal of 542421320020 is 20023124245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542421320027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557470 + ... + 2761429.

It is an arithmetic number, because the mean of its divisors is an integer number (47471182500).

Almost surely, 2^542421320020 is an apocalyptic number.

It is an amenable number.

542421320020 is an abundant number, since it is smaller than the sum of its proper divisors (596887059980).

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

542421320020 is a wasteful number, since it uses less digits than its factorization.

542421320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324007 (or 5324005 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 542421320020 its reverse (20023124245), we get a palindrome (562444444265).

The spelling of 542421320020 in words is "five hundred forty-two billion, four hundred twenty-one million, three hundred twenty thousand, twenty".