64704766407 has 8 divisors (see below), whose sum is σ = 86274257520. Its totient is φ = 43135893120.

The previous prime is 64704766403. The next prime is 64704766409. The reversal of 64704766407 is 70466740746.

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

It is not a de Polignac number, because 64704766407 - 2² = 64704766403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64704766407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64704766403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218719 + ... + 421007.

It is an arithmetic number, because the mean of its divisors is an integer number (10784282190).

Almost surely, 2^64704766407 is an apocalyptic number.

64704766407 is a deficient number, since it is larger than the sum of its proper divisors (21569491113).

64704766407 is a wasteful number, since it uses less digits than its factorization.

64704766407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308913.

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 64704766407 in words is "sixty-four billion, seven hundred four million, seven hundred sixty-six thousand, four hundred seven".