64068519 has 8 divisors (see below), whose sum is σ = 86384880. Its totient is φ = 42232256.

The previous prime is 64068509. The next prime is 64068533. The reversal of 64068519 is 91586046.

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 64068519 - 2⁷ = 64068391 is a prime.

It is a super-2 number, since 2×64068519² = 8209550253706722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64068509) 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, 119712 + ... + 120245.

It is an arithmetic number, because the mean of its divisors is an integer number (10798110).

Almost surely, 2^64068519 is an apocalyptic number.

64068519 is a deficient number, since it is larger than the sum of its proper divisors (22316361).

64068519 is a wasteful number, since it uses less digits than its factorization.

64068519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240049.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 64068519 is about 8004.2812919087. The cubic root of 64068519 is about 400.1426970045.

The spelling of 64068519 in words is "sixty-four million, sixty-eight thousand, five hundred nineteen".