768068515 has 4 divisors (see below), whose sum is σ = 921682224. Its totient is φ = 614454808.

The previous prime is 768068513. The next prime is 768068531. The reversal of 768068515 is 515860867.

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

It is a cyclic number.

It is not a de Polignac number, because 768068515 - 2¹ = 768068513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768068513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76806847 + ... + 76806856.

It is an arithmetic number, because the mean of its divisors is an integer number (230420556).

Almost surely, 2^768068515 is an apocalyptic number.

768068515 is a deficient number, since it is larger than the sum of its proper divisors (153613709).

768068515 is a wasteful number, since it uses less digits than its factorization.

768068515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153613708.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 768068515 is about 27714.0490545860. The cubic root of 768068515 is about 915.7986259052.

The spelling of 768068515 in words is "seven hundred sixty-eight million, sixty-eight thousand, five hundred fifteen".