64201012543 has 4 divisors (see below), whose sum is σ = 64202095048. Its totient is φ = 64199930040.

The previous prime is 64201012517. The next prime is 64201012549. The reversal of 64201012543 is 34521010246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34521010246 = 2 ⋅17260505123.

It is a cyclic number.

It is not a de Polignac number, because 64201012543 - 2²⁵ = 64167458111 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 (64201012549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446796 + ... + 572737.

It is an arithmetic number, because the mean of its divisors is an integer number (16050523762).

Almost surely, 2^64201012543 is an apocalyptic number.

64201012543 is a deficient number, since it is larger than the sum of its proper divisors (1082505).

64201012543 is a wasteful number, since it uses less digits than its factorization.

64201012543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082504.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 64201012543 its reverse (34521010246), we get a palindrome (98722022789).

The spelling of 64201012543 in words is "sixty-four billion, two hundred one million, twelve thousand, five hundred forty-three".