27685953245 has 16 divisors (see below), whose sum is σ = 35925907968. Its totient is φ = 20402361600.

The previous prime is 27685953241. The next prime is 27685953257. The reversal of 27685953245 is 54235958672.

It is a happy number.

It is not a de Polignac number, because 27685953245 - 2² = 27685953241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685953241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3461081 + ... + 3469070.

It is an arithmetic number, because the mean of its divisors is an integer number (2245369248).

Almost surely, 2^27685953245 is an apocalyptic number.

It is an amenable number.

27685953245 is a deficient number, since it is larger than the sum of its proper divisors (8239954723).

27685953245 is a wasteful number, since it uses less digits than its factorization.

27685953245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930220.

The product of its digits is 18144000, while the sum is 56.

The spelling of 27685953245 in words is "twenty-seven billion, six hundred eighty-five million, nine hundred fifty-three thousand, two hundred forty-five".