64706536535 has 8 divisors (see below), whose sum is σ = 82215364176. Its totient is φ = 48720215680.

The previous prime is 64706536511. The next prime is 64706536567. The reversal of 64706536535 is 53563560746.

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

It is not a de Polignac number, because 64706536535 - 2⁶ = 64706536471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 380626601 + ... + 380626770.

It is an arithmetic number, because the mean of its divisors is an integer number (10276920522).

Almost surely, 2^64706536535 is an apocalyptic number.

64706536535 is a deficient number, since it is larger than the sum of its proper divisors (17508827641).

64706536535 is a wasteful number, since it uses less digits than its factorization.

64706536535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761253393.

The product of its (nonzero) digits is 6804000, while the sum is 50.

The spelling of 64706536535 in words is "sixty-four billion, seven hundred six million, five hundred thirty-six thousand, five hundred thirty-five".