68191102761 has 8 divisors (see below), whose sum is σ = 90923327040. Its totient is φ = 45459806832.

The previous prime is 68191102717. The next prime is 68191102787. The reversal of 68191102761 is 16720119186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68191102761 - 2⁶ = 68191102697 is a prime.

It is a super-2 number, since 2×68191102761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68191102361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37350 + ... + 371183.

It is an arithmetic number, because the mean of its divisors is an integer number (11365415880).

Almost surely, 2^68191102761 is an apocalyptic number.

It is an amenable number.

68191102761 is a deficient number, since it is larger than the sum of its proper divisors (22732224279).

68191102761 is a wasteful number, since it uses less digits than its factorization.

68191102761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464175.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 68191102761 in words is "sixty-eight billion, one hundred ninety-one million, one hundred two thousand, seven hundred sixty-one".