27770215146 has 8 divisors (see below), whose sum is σ = 55540430304. Its totient is φ = 9256738380.

The previous prime is 27770215129. The next prime is 27770215171. The reversal of 27770215146 is 64151207772.

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

27770215146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27770215098 and 27770215107.

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 3 ways as a sum of consecutive naturals, for example, 2314184590 + ... + 2314184601.

It is an arithmetic number, because the mean of its divisors is an integer number (6942553788).

Almost surely, 2^27770215146 is an apocalyptic number.

27770215146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27770215146 is a wasteful number, since it uses less digits than its factorization.

27770215146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628369196.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 27770215146 in words is "twenty-seven billion, seven hundred seventy million, two hundred fifteen thousand, one hundred forty-six".