27708513842 has 4 divisors (see below), whose sum is σ = 41562770766. Its totient is φ = 13854256920.

The previous prime is 27708513829. The next prime is 27708513857. The reversal of 27708513842 is 24831580772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26800636681 + 907877161 = 163709^2 + 30131^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6927128459 + ... + 6927128462.

Almost surely, 2^27708513842 is an apocalyptic number.

27708513842 is a deficient number, since it is larger than the sum of its proper divisors (13854256924).

27708513842 is a wasteful number, since it uses less digits than its factorization.

27708513842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13854256923.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 27708513842 in words is "twenty-seven billion, seven hundred eight million, five hundred thirteen thousand, eight hundred forty-two".