64826108929 has 2 divisors, whose sum is σ = 64826108930. Its totient is φ = 64826108928.

The previous prime is 64826108927. The next prime is 64826109011. The reversal of 64826108929 is 92980162846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63228108304 + 1598000625 = 251452^2 + 39975^2 .

It is a cyclic number.

It is not a de Polignac number, because 64826108929 - 2¹ = 64826108927 is a prime.

Together with 64826108927, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64826108929.

It is not a weakly prime, because it can be changed into another prime (64826108927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32413054464 + 32413054465.

It is an arithmetic number, because the mean of its divisors is an integer number (32413054465).

Almost surely, 2^64826108929 is an apocalyptic number.

It is an amenable number.

64826108929 is a deficient number, since it is larger than the sum of its proper divisors (1).

64826108929 is an equidigital number, since it uses as much as digits as its factorization.

64826108929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

It can be divided in two parts, 64826 and 108929, that added together give a triangular number (173755 = T₅₈₉).

The spelling of 64826108929 in words is "sixty-four billion, eight hundred twenty-six million, one hundred eight thousand, nine hundred twenty-nine".