64612578307 has 8 divisors (see below), whose sum is σ = 64952118000. Its totient is φ = 64273155744.

The previous prime is 64612578241. The next prime is 64612578311. The reversal of 64612578307 is 70387521646.

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 64612578307 - 2⁷ = 64612578179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64612578907) 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, 1214869 + ... + 1266937.

It is an arithmetic number, because the mean of its divisors is an integer number (8119014750).

Almost surely, 2^64612578307 is an apocalyptic number.

64612578307 is a deficient number, since it is larger than the sum of its proper divisors (339539693).

64612578307 is a wasteful number, since it uses less digits than its factorization.

64612578307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58565.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 64612578307 in words is "sixty-four billion, six hundred twelve million, five hundred seventy-eight thousand, three hundred seven".