64479117379 has 2 divisors, whose sum is σ = 64479117380. Its totient is φ = 64479117378.

The previous prime is 64479117377. The next prime is 64479117397. The reversal of 64479117379 is 97371197446.

Together with next prime (64479117397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64479117379 - 2¹ = 64479117377 is a prime.

Together with 64479117377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64479117377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32239558689 + 32239558690.

It is an arithmetic number, because the mean of its divisors is an integer number (32239558690).

Almost surely, 2^64479117379 is an apocalyptic number.

64479117379 is a deficient number, since it is larger than the sum of its proper divisors (1).

64479117379 is an equidigital number, since it uses as much as digits as its factorization.

64479117379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8001504, while the sum is 58.

The spelling of 64479117379 in words is "sixty-four billion, four hundred seventy-nine million, one hundred seventeen thousand, three hundred seventy-nine".