768515690345 has 16 divisors (see below), whose sum is σ = 1016255456832. Its totient is φ = 554321154240.

The previous prime is 768515690317. The next prime is 768515690347. The reversal of 768515690345 is 543096515867.

It is a happy number.

It is not a de Polignac number, because 768515690345 - 2¹⁶ = 768515624809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (768515690347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137477651 + ... + 137483240.

It is an arithmetic number, because the mean of its divisors is an integer number (63515966052).

Almost surely, 2^768515690345 is an apocalyptic number.

It is an amenable number.

768515690345 is a deficient number, since it is larger than the sum of its proper divisors (247739766487).

768515690345 is a wasteful number, since it uses less digits than its factorization.

768515690345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274960952.

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 768515690345 in words is "seven hundred sixty-eight billion, five hundred fifteen million, six hundred ninety thousand, three hundred forty-five".