64018145471 has 16 divisors (see below), whose sum is σ = 77501450304. Its totient is φ = 51622147584.

The previous prime is 64018145417. The next prime is 64018145489. The reversal of 64018145471 is 17454181046.

It is a de Polignac number, because none of the positive numbers 2^k-64018145471 is a prime.

It is a super-3 number, since 3×64018145471³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64018145371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155561 + ... + 390173.

It is an arithmetic number, because the mean of its divisors is an integer number (4843840644).

Almost surely, 2^64018145471 is an apocalyptic number.

64018145471 is a deficient number, since it is larger than the sum of its proper divisors (13483304833).

64018145471 is a wasteful number, since it uses less digits than its factorization.

64018145471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236930.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 64018145471 in words is "sixty-four billion, eighteen million, one hundred forty-five thousand, four hundred seventy-one".