27825356164 has 6 divisors (see below), whose sum is σ = 48694373294. Its totient is φ = 13912678080.

The previous prime is 27825356159. The next prime is 27825356171. The reversal of 27825356164 is 46165352872.

It can be written as a sum of positive squares in only one way, i.e., 27470410564 + 354945600 = 165742^2 + 18840^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3478169517 + ... + 3478169524.

Almost surely, 2^27825356164 is an apocalyptic number.

It is an amenable number.

27825356164 is a deficient number, since it is larger than the sum of its proper divisors (20869017130).

27825356164 is a wasteful number, since it uses less digits than its factorization.

27825356164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956339045 (or 6956339043 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The spelling of 27825356164 in words is "twenty-seven billion, eight hundred twenty-five million, three hundred fifty-six thousand, one hundred sixty-four".