27768858734 has 16 divisors (see below), whose sum is σ = 41720071680. Its totient is φ = 13862185560.

The previous prime is 27768858703. The next prime is 27768858781. The reversal of 27768858734 is 43785886772.

It is a super-2 number, since 2×27768858734² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 7098239 + ... + 7102149.

It is an arithmetic number, because the mean of its divisors is an integer number (2607504480).

Almost surely, 2^27768858734 is an apocalyptic number.

27768858734 is a deficient number, since it is larger than the sum of its proper divisors (13951212946).

27768858734 is a wasteful number, since it uses less digits than its factorization.

27768858734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695.

The product of its digits is 126443520, while the sum is 65.

The spelling of 27768858734 in words is "twenty-seven billion, seven hundred sixty-eight million, eight hundred fifty-eight thousand, seven hundred thirty-four".