64819420346 has 8 divisors (see below), whose sum is σ = 97286565684. Its totient is φ = 32390565120.

The previous prime is 64819420331. The next prime is 64819420361. The reversal of 64819420346 is 64302491846.

It is an interprime number because it is at equal distance from previous prime (64819420331) and next prime (64819420361).

It can be written as a sum of positive squares in 2 ways, for example, as 59022273025 + 5797147321 = 242945^2 + 76139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64819420346.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9568295 + ... + 9575066.

Almost surely, 2^64819420346 is an apocalyptic number.

64819420346 is a deficient number, since it is larger than the sum of its proper divisors (32467145338).

64819420346 is a wasteful number, since it uses less digits than its factorization.

64819420346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19145056.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 64819420346 in words is "sixty-four billion, eight hundred nineteen million, four hundred twenty thousand, three hundred forty-six".