64872647843 has 2 divisors, whose sum is σ = 64872647844. Its totient is φ = 64872647842.

The previous prime is 64872647831. The next prime is 64872647869. The reversal of 64872647843 is 34874627846.

64872647843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64872647843 - 2⁶ = 64872647779 is a prime.

It is not a weakly prime, because it can be changed into another prime (64872647813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32436323921 + 32436323922.

It is an arithmetic number, because the mean of its divisors is an integer number (32436323922).

Almost surely, 2^64872647843 is an apocalyptic number.

64872647843 is a deficient number, since it is larger than the sum of its proper divisors (1).

64872647843 is an equidigital number, since it uses as much as digits as its factorization.

64872647843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43352064, while the sum is 59.

The spelling of 64872647843 in words is "sixty-four billion, eight hundred seventy-two million, six hundred forty-seven thousand, eight hundred forty-three".