68148811 has 4 divisors (see below), whose sum is σ = 70498800. Its totient is φ = 65798824.

The previous prime is 68148803. The next prime is 68148863. The reversal of 68148811 is 11884186.

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 68148811 - 2³ = 68148803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68148211) 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, 1174951 + ... + 1175008.

It is an arithmetic number, because the mean of its divisors is an integer number (17624700).

Almost surely, 2^68148811 is an apocalyptic number.

68148811 is a deficient number, since it is larger than the sum of its proper divisors (2349989).

68148811 is a wasteful number, since it uses less digits than its factorization.

68148811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349988.

The product of its digits is 12288, while the sum is 37.

The square root of 68148811 is about 8255.2293123813. The cubic root of 68148811 is about 408.4630359963.

It can be divided in two parts, 6814 and 8811, that added together give a 6-th power (15625 = 5⁶).

The spelling of 68148811 in words is "sixty-eight million, one hundred forty-eight thousand, eight hundred eleven".