27895394220949 has 8 divisors (see below), whose sum is σ = 28211661855000. Its totient is φ = 27579189614592.

The previous prime is 27895394220893. The next prime is 27895394220989. The reversal of 27895394220949 is 94902249359872.

It can be written as a sum of positive squares in 4 ways, for example, as 1183759232049 + 26711634988900 = 1088007^2 + 5168330^2 .

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 27895394220949 - 2⁹ = 27895394220437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27895394220989) 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, 14866444 + ... + 16637365.

It is an arithmetic number, because the mean of its divisors is an integer number (3526457731875).

Almost surely, 2^{27895394220949} is an apocalyptic number.

It is an amenable number.

27895394220949 is a deficient number, since it is larger than the sum of its proper divisors (316267634051).

27895394220949 is an equidigital number, since it uses as much as digits as its factorization.

27895394220949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31513847.

The product of its (nonzero) digits is 705438720, while the sum is 73.

The spelling of 27895394220949 in words is "twenty-seven trillion, eight hundred ninety-five billion, three hundred ninety-four million, two hundred twenty thousand, nine hundred forty-nine".