64918923387327 has 10 divisors (see below), whose sum is σ = 96977650986128. Its totient is φ = 43279282258164.

The previous prime is 64918923387287. The next prime is 64918923387401. The reversal of 64918923387327 is 72378332981946.

64918923387327 is a `hidden beast` number, since 6 + 49 + 189 + 2 + 3 + 3 + 87 + 327 = 666.

It is not a de Polignac number, because 64918923387327 - 2¹⁸ = 64918923125183 is a prime.

It is a super-2 number, since 2×64918923387327² (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 (64918923387727) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 400734094903 + ... + 400734095064.

Almost surely, 2^{64918923387327} is an apocalyptic number.

64918923387327 is a deficient number, since it is larger than the sum of its proper divisors (32058727598801).

64918923387327 is an equidigital number, since it uses as much as digits as its factorization.

64918923387327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801468189979 (or 801468189970 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 72.

The spelling of 64918923387327 in words is "sixty-four trillion, nine hundred eighteen billion, nine hundred twenty-three million, three hundred eighty-seven thousand, three hundred twenty-seven".