64967879339 has 4 divisors (see below), whose sum is σ = 70874050200. Its totient is φ = 59061708480.

The previous prime is 64967879287. The next prime is 64967879359. The reversal of 64967879339 is 93397876946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64967879339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64967879359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953085414 + ... + 2953085435.

It is an arithmetic number, because the mean of its divisors is an integer number (17718512550).

Almost surely, 2^64967879339 is an apocalyptic number.

64967879339 is a deficient number, since it is larger than the sum of its proper divisors (5906170861).

64967879339 is a wasteful number, since it uses less digits than its factorization.

64967879339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906170860.

The product of its digits is 370355328, while the sum is 71.

The spelling of 64967879339 in words is "sixty-four billion, nine hundred sixty-seven million, eight hundred seventy-nine thousand, three hundred thirty-nine".