64866077269893 has 12 divisors (see below), whose sum is σ = 93727455726528. Its totient is φ = 43229277306600.

The previous prime is 64866077269891. The next prime is 64866077269919. The reversal of 64866077269893 is 39896277066846.

64866077269893 is a `hidden beast` number, since 6 + 486 + 6 + 0 + 7 + 72 + 69 + 8 + 9 + 3 = 666.

It is not a de Polignac number, because 64866077269893 - 2¹ = 64866077269891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64866077269891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1231156083 + ... + 1231208768.

It is an arithmetic number, because the mean of its divisors is an integer number (7810621310544).

Almost surely, 2^{64866077269893} is an apocalyptic number.

It is an amenable number.

64866077269893 is a deficient number, since it is larger than the sum of its proper divisors (28861378456635).

64866077269893 is a wasteful number, since it uses less digits than its factorization.

64866077269893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462367784 (or 2462367781 counting only the distinct ones).

The product of its (nonzero) digits is 7900913664, while the sum is 81.

The spelling of 64866077269893 in words is "sixty-four trillion, eight hundred sixty-six billion, seventy-seven million, two hundred sixty-nine thousand, eight hundred ninety-three".