27794827957 has 8 divisors (see below), whose sum is σ = 29934742880. Its totient is φ = 25655177520.

The previous prime is 27794827927. The next prime is 27794827969. The reversal of 27794827957 is 75972849772.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27794827957 is a prime.

It is a super-2 number, since 2×27794827957² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27794827892 and 27794827901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27794827927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188482 + ... + 301852.

It is an arithmetic number, because the mean of its divisors is an integer number (3741842860).

Almost surely, 2^27794827957 is an apocalyptic number.

It is an amenable number.

27794827957 is a deficient number, since it is larger than the sum of its proper divisors (2139914923).

27794827957 is a wasteful number, since it uses less digits than its factorization.

27794827957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132243.

The product of its digits is 124467840, while the sum is 67.

The spelling of 27794827957 in words is "twenty-seven billion, seven hundred ninety-four million, eight hundred twenty-seven thousand, nine hundred fifty-seven".