27215642264 has 32 divisors (see below), whose sum is σ = 52685581440. Its totient is φ = 13166323200.

The previous prime is 27215642231. The next prime is 27215642269. The reversal of 27215642264 is 46224651272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27215642269) 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 7 ways as a sum of consecutive naturals, for example, 2270912 + ... + 2282864.

It is an arithmetic number, because the mean of its divisors is an integer number (1646424420).

Almost surely, 2^27215642264 is an apocalyptic number.

It is an amenable number.

27215642264 is a deficient number, since it is larger than the sum of its proper divisors (25469939176).

27215642264 is a wasteful number, since it uses less digits than its factorization.

27215642264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21171 (or 21167 counting only the distinct ones).

The product of its digits is 322560, while the sum is 41.

The spelling of 27215642264 in words is "twenty-seven billion, two hundred fifteen million, six hundred forty-two thousand, two hundred sixty-four".