27859488542 has 16 divisors (see below), whose sum is σ = 42216551520. Its totient is φ = 13787571168.

The previous prime is 27859488541. The next prime is 27859488563. The reversal of 27859488542 is 24588495872.

It is a super-2 number, since 2×27859488542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27859488541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144728 + ... + 276884.

It is an arithmetic number, because the mean of its divisors is an integer number (2638534470).

Almost surely, 2^27859488542 is an apocalyptic number.

27859488542 is a deficient number, since it is larger than the sum of its proper divisors (14357062978).

27859488542 is a wasteful number, since it uses less digits than its factorization.

27859488542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133235.

The product of its digits is 51609600, while the sum is 62.

The spelling of 27859488542 in words is "twenty-seven billion, eight hundred fifty-nine million, four hundred eighty-eight thousand, five hundred forty-two".