27320252427 has 40 divisors (see below), whose sum is σ = 43969938320. Its totient is φ = 16805257920.

The previous prime is 27320252423. The next prime is 27320252431. The reversal of 27320252427 is 72425202372.

27320252427 is a `hidden beast` number, since 27 + 3 + 202 + 5 + 2 + 427 = 666.

It is an interprime number because it is at equal distance from previous prime (27320252423) and next prime (27320252431).

It is not a de Polignac number, because 27320252427 - 2² = 27320252423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27320252391 and 27320252400.

It is not an unprimeable number, because it can be changed into a prime (27320252423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3503649 + ... + 3511437.

It is an arithmetic number, because the mean of its divisors is an integer number (1099248458).

Almost surely, 2^27320252427 is an apocalyptic number.

27320252427 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27320252427 is a deficient number, since it is larger than the sum of its proper divisors (16649685893).

27320252427 is a wasteful number, since it uses less digits than its factorization.

27320252427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11145 (or 11136 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

Adding to 27320252427 its reverse (72425202372), we get a palindrome (99745454799).

The spelling of 27320252427 in words is "twenty-seven billion, three hundred twenty million, two hundred fifty-two thousand, four hundred twenty-seven".