68177428809 has 32 divisors (see below), whose sum is σ = 107512995840. Its totient is φ = 37600718400.

The previous prime is 68177428789. The next prime is 68177428841. The reversal of 68177428809 is 90882477186.

It is not a de Polignac number, because 68177428809 - 2²³ = 68169040201 is a prime.

It is a super-3 number, since 3×68177428809³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68177428849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1679664 + ... + 1719774.

It is an arithmetic number, because the mean of its divisors is an integer number (3359781120).

Almost surely, 2^68177428809 is an apocalyptic number.

It is an amenable number.

68177428809 is a deficient number, since it is larger than the sum of its proper divisors (39335567031).

68177428809 is a wasteful number, since it uses less digits than its factorization.

68177428809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42941.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 68177428809 in words is "sixty-eight billion, one hundred seventy-seven million, four hundred twenty-eight thousand, eight hundred nine".