27778145330162 has 32 divisors (see below), whose sum is σ = 42432480189120. Its totient is φ = 13634883472320.

The previous prime is 27778145330113. The next prime is 27778145330171. The reversal of 27778145330162 is 26103354187772.

It is a junction number, because it is equal to n+sod(n) for n = 27778145330098 and 27778145330107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238805288 + ... + 238921580.

It is an arithmetic number, because the mean of its divisors is an integer number (1326015005910).

Almost surely, 2^{27778145330162} is an apocalyptic number.

27778145330162 is a deficient number, since it is larger than the sum of its proper divisors (14654334858958).

27778145330162 is a wasteful number, since it uses less digits than its factorization.

27778145330162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120138.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 27778145330162 in words is "twenty-seven trillion, seven hundred seventy-eight billion, one hundred forty-five million, three hundred thirty thousand, one hundred sixty-two".