542825478538 has 64 divisors (see below), whose sum is σ = 977462938368. Its totient is φ = 221271367680.

The previous prime is 542825478529. The next prime is 542825478539. The reversal of 542825478538 is 835874528245.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (542825478539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3657670 + ... + 3803182.

It is an arithmetic number, because the mean of its divisors is an integer number (15272858412).

Almost surely, 2^542825478538 is an apocalyptic number.

542825478538 is a deficient number, since it is larger than the sum of its proper divisors (434637459830).

542825478538 is a wasteful number, since it uses less digits than its factorization.

542825478538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145727.

The product of its digits is 86016000, while the sum is 61.

The spelling of 542825478538 in words is "five hundred forty-two billion, eight hundred twenty-five million, four hundred seventy-eight thousand, five hundred thirty-eight".