542347975081368 has 48 divisors (see below), whose sum is σ = 1473643656565080. Its totient is φ = 180193789759104.

The previous prime is 542347975081333. The next prime is 542347975081369. The reversal of 542347975081368 is 863180579743245.

542347975081368 is a `hidden beast` number, since 5 + 4 + 2 + 3 + 47 + 9 + 7 + 508 + 13 + 68 = 666.

It is a super-5 number, since 5×542347975081368⁵ (a number of 75 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 542347975081296 and 542347975081305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542347975081369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12268073605 + ... + 12268117812.

It is a 2-persistent number, because it is pandigital, and so is 2⋅542347975081368 = 1084695950162736, but 3⋅542347975081368 = 1627043925244104 is not.

Almost surely, 2^{542347975081368} is an apocalyptic number.

It is an amenable number.

542347975081368 is an abundant number, since it is smaller than the sum of its proper divisors (931295681483712).

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

542347975081368 is a wasteful number, since it uses less digits than its factorization.

542347975081368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24536191736 (or 24536191729 counting only the distinct ones).

The product of its (nonzero) digits is 1219276800, while the sum is 72.

The spelling of 542347975081368 in words is "five hundred forty-two trillion, three hundred forty-seven billion, nine hundred seventy-five million, eighty-one thousand, three hundred sixty-eight".