27964812552655 has 32 divisors (see below), whose sum is σ = 37790112116736. Its totient is φ = 19681608960000.

The previous prime is 27964812552653. The next prime is 27964812552709. The reversal of 27964812552655 is 55625521846972.

It is not a de Polignac number, because 27964812552655 - 2¹ = 27964812552653 is a prime.

It is a super-2 number, since 2×27964812552655² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27964812552653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116094190 + ... + 116334820.

It is an arithmetic number, because the mean of its divisors is an integer number (1180941003648).

Almost surely, 2^{27964812552655} is an apocalyptic number.

27964812552655 is a deficient number, since it is larger than the sum of its proper divisors (9825299564081).

27964812552655 is a wasteful number, since it uses less digits than its factorization.

27964812552655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308839.

The product of its digits is 362880000, while the sum is 67.

The spelling of 27964812552655 in words is "twenty-seven trillion, nine hundred sixty-four billion, eight hundred twelve million, five hundred fifty-two thousand, six hundred fifty-five".