64734068866 has 8 divisors (see below), whose sum is σ = 99359268624. Its totient is φ = 31614312660.

The previous prime is 64734068843. The next prime is 64734068869. The reversal of 64734068866 is 66886043746.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64734068866.

It is not an unprimeable number, because it can be changed into a prime (64734068869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376360780 + ... + 376360951.

It is an arithmetic number, because the mean of its divisors is an integer number (12419908578).

Almost surely, 2^64734068866 is an apocalyptic number.

64734068866 is a deficient number, since it is larger than the sum of its proper divisors (34625199758).

64734068866 is a wasteful number, since it uses less digits than its factorization.

64734068866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752721776.

The product of its (nonzero) digits is 27869184, while the sum is 58.

The spelling of 64734068866 in words is "sixty-four billion, seven hundred thirty-four million, sixty-eight thousand, eight hundred sixty-six".