64913788099 has 8 divisors (see below), whose sum is σ = 67822214400. Its totient is φ = 62012535816.

The previous prime is 64913788067. The next prime is 64913788109. The reversal of 64913788099 is 99088731946.

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

It is a cyclic number.

It is not a de Polignac number, because 64913788099 - 2⁵ = 64913788067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64913788099.

It is not an unprimeable number, because it can be changed into a prime (64913788039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774999 + ... + 1811200.

It is an arithmetic number, because the mean of its divisors is an integer number (8477776800).

Almost surely, 2^64913788099 is an apocalyptic number.

64913788099 is a deficient number, since it is larger than the sum of its proper divisors (2908426301).

64913788099 is a wasteful number, since it uses less digits than its factorization.

64913788099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587009.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 64913788099 in words is "sixty-four billion, nine hundred thirteen million, seven hundred eighty-eight thousand, ninety-nine".