27828252749 has 8 divisors (see below), whose sum is σ = 30408782400. Its totient is φ = 25256171200.

The previous prime is 27828252737. The next prime is 27828252779. The reversal of 27828252749 is 94725282872.

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 27828252749 - 2²⁸ = 27559817293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27828252694 and 27828252703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828252779) 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, 2105132 + ... + 2118309.

It is an arithmetic number, because the mean of its divisors is an integer number (3801097800).

Almost surely, 2^27828252749 is an apocalyptic number.

It is an amenable number.

27828252749 is a deficient number, since it is larger than the sum of its proper divisors (2580529651).

27828252749 is a wasteful number, since it uses less digits than its factorization.

27828252749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224051.

The product of its digits is 9031680, while the sum is 56.

The spelling of 27828252749 in words is "twenty-seven billion, eight hundred twenty-eight million, two hundred fifty-two thousand, seven hundred forty-nine".