68340519 has 24 divisors (see below), whose sum is σ = 107518320. Its totient is φ = 41576832.

The previous prime is 68340499. The next prime is 68340533. The reversal of 68340519 is 91504386.

It is not a de Polignac number, because 68340519 - 2⁸ = 68340263 is a prime.

It is a super-2 number, since 2×68340519² = 9340853074378722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68340599) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7132 + ... + 13694.

It is an arithmetic number, because the mean of its divisors is an integer number (4479930).

Almost surely, 2^68340519 is an apocalyptic number.

68340519 is a deficient number, since it is larger than the sum of its proper divisors (39177801).

68340519 is a wasteful number, since it uses less digits than its factorization.

68340519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68340519 is about 8266.8324647352. The cubic root of 68340519 is about 408.8456903593.

The spelling of 68340519 in words is "sixty-eight million, three hundred forty thousand, five hundred nineteen".