68758811 has 4 divisors (see below), whose sum is σ = 75009624. Its totient is φ = 62508000.

The previous prime is 68758769. The next prime is 68758813. The reversal of 68758811 is 11885786.

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 68758811 - 2⁶ = 68758747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68758813) 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, 3125390 + ... + 3125411.

It is an arithmetic number, because the mean of its divisors is an integer number (18752406).

Almost surely, 2^68758811 is an apocalyptic number.

68758811 is a deficient number, since it is larger than the sum of its proper divisors (6250813).

68758811 is a wasteful number, since it uses less digits than its factorization.

68758811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250812.

The product of its digits is 107520, while the sum is 44.

The square root of 68758811 is about 8292.0932821574. The cubic root of 68758811 is about 409.6781352551.

The spelling of 68758811 in words is "sixty-eight million, seven hundred fifty-eight thousand, eight hundred eleven".