64538683459 has 2 divisors, whose sum is σ = 64538683460. Its totient is φ = 64538683458.

The previous prime is 64538683457. The next prime is 64538683577. The reversal of 64538683459 is 95438683546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64538683459 - 2¹ = 64538683457 is a prime.

Together with 64538683457, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 64538683397 and 64538683406.

It is not a weakly prime, because it can be changed into another prime (64538683457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32269341729 + 32269341730.

It is an arithmetic number, because the mean of its divisors is an integer number (32269341730).

Almost surely, 2^64538683459 is an apocalyptic number.

64538683459 is a deficient number, since it is larger than the sum of its proper divisors (1).

64538683459 is an equidigital number, since it uses as much as digits as its factorization.

64538683459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74649600, while the sum is 61.

The spelling of 64538683459 in words is "sixty-four billion, five hundred thirty-eight million, six hundred eighty-three thousand, four hundred fifty-nine".