68761565 has 16 divisors (see below), whose sum is σ = 85432320. Its totient is φ = 53074560.

The previous prime is 68761531. The next prime is 68761571. The reversal of 68761565 is 56516786.

It is not a de Polignac number, because 68761565 - 2¹⁴ = 68745181 is a prime.

It is a congruent number.

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, 95276 + ... + 95994.

It is an arithmetic number, because the mean of its divisors is an integer number (5339520).

Almost surely, 2^68761565 is an apocalyptic number.

It is an amenable number.

68761565 is a deficient number, since it is larger than the sum of its proper divisors (16670755).

68761565 is a wasteful number, since it uses less digits than its factorization.

68761565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its digits is 302400, while the sum is 44.

The square root of 68761565 is about 8292.2593423023. The cubic root of 68761565 is about 409.6836048015.

The spelling of 68761565 in words is "sixty-eight million, seven hundred sixty-one thousand, five hundred sixty-five".