68130669 has 16 divisors (see below), whose sum is σ = 95030784. Its totient is φ = 43335600.

The previous prime is 68130641. The next prime is 68130691. The reversal of 68130669 is 96603186.

It is a happy number.

It is not a de Polignac number, because 68130669 - 2¹³ = 68122477 is a prime.

It is a super-2 number, since 2×68130669² = 9283576116775122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68137669) 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, 32874 + ... + 34884.

It is an arithmetic number, because the mean of its divisors is an integer number (5939424).

Almost surely, 2^68130669 is an apocalyptic number.

68130669 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68130669 is a deficient number, since it is larger than the sum of its proper divisors (26900115).

68130669 is a wasteful number, since it uses less digits than its factorization.

68130669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 68130669 is about 8254.1304205834. The cubic root of 68130669 is about 408.4267869214.

The spelling of 68130669 in words is "sixty-eight million, one hundred thirty thousand, six hundred sixty-nine".