27985268265 has 8 divisors (see below), whose sum is σ = 44776429248. Its totient is φ = 14925476400.

The previous prime is 27985268249. The next prime is 27985268287. The reversal of 27985268265 is 56286258972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27985268265 - 2⁴ = 27985268249 is a prime.

It is a super-2 number, since 2×27985268265² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27985268199 and 27985268208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932842261 + ... + 932842290.

It is an arithmetic number, because the mean of its divisors is an integer number (5597053656).

Almost surely, 2^27985268265 is an apocalyptic number.

It is an amenable number.

27985268265 is a deficient number, since it is larger than the sum of its proper divisors (16791160983).

27985268265 is a wasteful number, since it uses less digits than its factorization.

27985268265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865684559.

The product of its digits is 29030400, while the sum is 60.

The spelling of 27985268265 in words is "twenty-seven billion, nine hundred eighty-five million, two hundred sixty-eight thousand, two hundred sixty-five".