542420345502 has 128 divisors (see below), whose sum is σ = 1401581491200. Its totient is φ = 152279042688.

The previous prime is 542420345497. The next prime is 542420345587. The reversal of 542420345502 is 205543024245.

542420345502 is a `hidden beast` number, since 54 + 2 + 4 + 20 + 34 + 550 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63266488 + ... + 63275060.

It is an arithmetic number, because the mean of its divisors is an integer number (10949855400).

Almost surely, 2^542420345502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542420345502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700790745600).

542420345502 is an abundant number, since it is smaller than the sum of its proper divisors (859161145698).

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

542420345502 is a wasteful number, since it uses less digits than its factorization.

542420345502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487 (or 11481 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 542420345502 its reverse (205543024245), we get a palindrome (747963369747).

The spelling of 542420345502 in words is "five hundred forty-two billion, four hundred twenty million, three hundred forty-five thousand, five hundred two".