68364109 has 16 divisors (see below), whose sum is σ = 80340480. Its totient is φ = 57501360.

The previous prime is 68364091. The next prime is 68364133. The reversal of 68364109 is 90146386.

It is a cyclic number.

It is not a de Polignac number, because 68364109 - 2⁵ = 68364077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68364139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5184 + ... + 12790.

It is an arithmetic number, because the mean of its divisors is an integer number (5021280).

Almost surely, 2^68364109 is an apocalyptic number.

It is an amenable number.

68364109 is a deficient number, since it is larger than the sum of its proper divisors (11976371).

68364109 is a wasteful number, since it uses less digits than its factorization.

68364109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 68364109 is about 8268.2591275310. The cubic root of 68364109 is about 408.8927271708.

The spelling of 68364109 in words is "sixty-eight million, three hundred sixty-four thousand, one hundred nine".