64347354719 has 8 divisors (see below), whose sum is σ = 64690170672. Its totient is φ = 64004636160.

The previous prime is 64347354677. The next prime is 64347354737. The reversal of 64347354719 is 91745374346.

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

It is a cyclic number.

It is not a de Polignac number, because 64347354719 - 2¹⁶ = 64347289183 is a prime.

It is a super-2 number, since 2×64347354719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64347354769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580057 + ... + 1620269.

It is an arithmetic number, because the mean of its divisors is an integer number (8086271334).

Almost surely, 2^64347354719 is an apocalyptic number.

64347354719 is a deficient number, since it is larger than the sum of its proper divisors (342815953).

64347354719 is a wasteful number, since it uses less digits than its factorization.

64347354719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48697.

The product of its digits is 7620480, while the sum is 53.

The spelling of 64347354719 in words is "sixty-four billion, three hundred forty-seven million, three hundred fifty-four thousand, seven hundred nineteen".