64535012775 has 18 divisors (see below), whose sum is σ = 115589378840. Its totient is φ = 34418673360.

The previous prime is 64535012753. The next prime is 64535012779. The reversal of 64535012775 is 57721053546.

It is a happy number.

64535012775 is a `hidden beast` number, since 6 + 4 + 53 + 501 + 27 + 75 = 666.

64535012775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64535012775 - 2²⁷ = 64400795047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64535012775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64535012779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 143410915 + ... + 143411364.

Almost surely, 2^64535012775 is an apocalyptic number.

64535012775 is a deficient number, since it is larger than the sum of its proper divisors (51054366065).

64535012775 is a wasteful number, since it uses less digits than its factorization.

64535012775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286822295 (or 286822287 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 64535012775 in words is "sixty-four billion, five hundred thirty-five million, twelve thousand, seven hundred seventy-five".