64965279455999 has 8 divisors (see below), whose sum is σ = 70215181243200. Its totient is φ = 59751459468576.

The previous prime is 64965279455977. The next prime is 64965279456001. The reversal of 64965279455999 is 99955497256946.

It is a happy number.

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 64965279455999 - 2¹² = 64965279451903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64965279455299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9020446199 + ... + 9020453400.

It is an arithmetic number, because the mean of its divisors is an integer number (8776897655400).

Almost surely, 2^{64965279455999} is an apocalyptic number.

64965279455999 is a deficient number, since it is larger than the sum of its proper divisors (5249901787201).

64965279455999 is a wasteful number, since it uses less digits than its factorization.

64965279455999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18040899889.

The product of its digits is 59521392000, while the sum is 89.

The spelling of 64965279455999 in words is "sixty-four trillion, nine hundred sixty-five billion, two hundred seventy-nine million, four hundred fifty-five thousand, nine hundred ninety-nine".