64751034773 has 4 divisors (see below), whose sum is σ = 64751951340. Its totient is φ = 64750118208.

The previous prime is 64751034757. The next prime is 64751034811. The reversal of 64751034773 is 37743015746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37743015746 = 2 ⋅18871507873.

It can be written as a sum of positive squares in 2 ways, for example, as 52614266884 + 12136767889 = 229378^2 + 110167^2 .

It is a cyclic number.

It is not a de Polignac number, because 64751034773 - 2⁴ = 64751034757 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 (64751036773) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 342578 + ... + 496851.

It is an arithmetic number, because the mean of its divisors is an integer number (16187987835).

Almost surely, 2^64751034773 is an apocalyptic number.

It is an amenable number.

64751034773 is a deficient number, since it is larger than the sum of its proper divisors (916567).

64751034773 is an equidigital number, since it uses as much as digits as its factorization.

64751034773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916566.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 64751034773 in words is "sixty-four billion, seven hundred fifty-one million, thirty-four thousand, seven hundred seventy-three".