68365755 has 32 divisors (see below), whose sum is σ = 128692800. Its totient is φ = 34315776.

The previous prime is 68365753. The next prime is 68365771. The reversal of 68365755 is 55756386.

It is not a de Polignac number, because 68365755 - 2¹ = 68365753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68365755.

It is not an unprimeable number, because it can be changed into a prime (68365753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12600 + ... + 17189.

It is an arithmetic number, because the mean of its divisors is an integer number (4021650).

Almost surely, 2^68365755 is an apocalyptic number.

68365755 is a deficient number, since it is larger than the sum of its proper divisors (60327045).

68365755 is a wasteful number, since it uses less digits than its factorization.

68365755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820 (or 29814 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 68365755 is about 8268.3586642090. The cubic root of 68365755 is about 408.8960087759.

The spelling of 68365755 in words is "sixty-eight million, three hundred sixty-five thousand, seven hundred fifty-five".