27680958287 has 4 divisors (see below), whose sum is σ = 28635474120. Its totient is φ = 26726442456.

The previous prime is 27680958233. The next prime is 27680958289. The reversal of 27680958287 is 78285908672.

It is a happy number.

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

It is not a de Polignac number, because 27680958287 - 2¹⁴ = 27680941903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27680958289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477257873 + ... + 477257930.

It is an arithmetic number, because the mean of its divisors is an integer number (7158868530).

Almost surely, 2^27680958287 is an apocalyptic number.

27680958287 is a deficient number, since it is larger than the sum of its proper divisors (954515833).

27680958287 is an equidigital number, since it uses as much as digits as its factorization.

27680958287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954515832.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 27680958287 in words is "twenty-seven billion, six hundred eighty million, nine hundred fifty-eight thousand, two hundred eighty-seven".