68775261 has 8 divisors (see below), whose sum is σ = 92166624. Its totient is φ = 45617040.

The previous prime is 68775253. The next prime is 68775277. The reversal of 68775261 is 16257786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68775261 - 2³ = 68775253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68773261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57595 + ... + 58776.

It is an arithmetic number, because the mean of its divisors is an integer number (11520828).

Almost surely, 2^68775261 is an apocalyptic number.

It is an amenable number.

68775261 is a deficient number, since it is larger than the sum of its proper divisors (23391363).

68775261 is a wasteful number, since it uses less digits than its factorization.

68775261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116571.

The product of its digits is 141120, while the sum is 42.

The square root of 68775261 is about 8293.0851316021. The cubic root of 68775261 is about 409.7108033979.

The spelling of 68775261 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred sixty-one".