768040865 has 16 divisors (see below), whose sum is σ = 950607360. Its totient is φ = 595387200.

The previous prime is 768040853. The next prime is 768040873. The reversal of 768040865 is 568040867.

It is not a de Polignac number, because 768040865 - 2¹⁸ = 767778721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7556 + ... + 39914.

It is an arithmetic number, because the mean of its divisors is an integer number (59412960).

Almost surely, 2^768040865 is an apocalyptic number.

It is an amenable number.

768040865 is a deficient number, since it is larger than the sum of its proper divisors (182566495).

768040865 is a wasteful number, since it uses less digits than its factorization.

768040865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32512.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 768040865 is about 27713.5502056305. The cubic root of 768040865 is about 915.7876363753.

The spelling of 768040865 in words is "seven hundred sixty-eight million, forty thousand, eight hundred sixty-five".