64713019543 has 16 divisors (see below), whose sum is σ = 68779497600. Its totient is φ = 60713180640.

The previous prime is 64713019541. The next prime is 64713019583. The reversal of 64713019543 is 34591031746.

It is not a de Polignac number, because 64713019543 - 2¹ = 64713019541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64713019543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64713019541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4638288 + ... + 4652218.

It is an arithmetic number, because the mean of its divisors is an integer number (4298718600).

Almost surely, 2^64713019543 is an apocalyptic number.

64713019543 is a deficient number, since it is larger than the sum of its proper divisors (4066478057).

64713019543 is a wasteful number, since it uses less digits than its factorization.

64713019543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 64713019543 in words is "sixty-four billion, seven hundred thirteen million, nineteen thousand, five hundred forty-three".