27424872557 has 8 divisors (see below), whose sum is σ = 27458870400. Its totient is φ = 27390898864.

The previous prime is 27424872551. The next prime is 27424872577. The reversal of 27424872557 is 75527842472.

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

It is a cyclic number.

It is not a de Polignac number, because 27424872557 - 2²⁸ = 27156437101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27424872499 and 27424872508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27424872551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3249419 + ... + 3257847.

It is an arithmetic number, because the mean of its divisors is an integer number (3432358800).

Almost surely, 2^27424872557 is an apocalyptic number.

It is an amenable number.

27424872557 is a deficient number, since it is larger than the sum of its proper divisors (33997843).

27424872557 is a wasteful number, since it uses less digits than its factorization.

27424872557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12075.

The product of its digits is 8780800, while the sum is 53.

The spelling of 27424872557 in words is "twenty-seven billion, four hundred twenty-four million, eight hundred seventy-two thousand, five hundred fifty-seven".