27664423270 has 64 divisors (see below), whose sum is σ = 57148934400. Its totient is φ = 9548210560.

The previous prime is 27664423261. The next prime is 27664423273. The reversal of 27664423270 is 7232446672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27664423273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114717 + ... + 261703.

It is an arithmetic number, because the mean of its divisors is an integer number (892952100).

Almost surely, 2^27664423270 is an apocalyptic number.

27664423270 is an abundant number, since it is smaller than the sum of its proper divisors (29484511130).

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

27664423270 is a wasteful number, since it uses less digits than its factorization.

27664423270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147093.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 27664423270 in words is "twenty-seven billion, six hundred sixty-four million, four hundred twenty-three thousand, two hundred seventy".