27964812552646 has 16 divisors (see below), whose sum is σ = 41968350871200. Its totient is φ = 13975362596160.

The previous prime is 27964812552641. The next prime is 27964812552653. The reversal of 27964812552646 is 64625521846972.

It is a happy number.

It is a super-2 number, since 2×27964812552646² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27964812552641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303190816 + ... + 303283036.

It is an arithmetic number, because the mean of its divisors is an integer number (2623021929450).

Almost surely, 2^{27964812552646} is an apocalyptic number.

27964812552646 is a deficient number, since it is larger than the sum of its proper divisors (14003538318554).

27964812552646 is a wasteful number, since it uses less digits than its factorization.

27964812552646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166959.

The product of its digits is 348364800, while the sum is 67.

The spelling of 27964812552646 in words is "twenty-seven trillion, nine hundred sixty-four billion, eight hundred twelve million, five hundred fifty-two thousand, six hundred forty-six".