68961153745 has 8 divisors (see below), whose sum is σ = 90276419520. Its totient is φ = 50153566320.

The previous prime is 68961153743. The next prime is 68961153773. The reversal of 68961153745 is 54735116986.

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

It is not a de Polignac number, because 68961153745 - 2¹ = 68961153743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 1253839159 = 68961153745 / (6 + 8 + 9 + 6 + 1 + 1 + 5 + 3 + 7 + 4 + 5).

It is not an unprimeable number, because it can be changed into a prime (68961153743) 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, 626919525 + ... + 626919634.

It is an arithmetic number, because the mean of its divisors is an integer number (11284552440).

Almost surely, 2^68961153745 is an apocalyptic number.

It is an amenable number.

68961153745 is a deficient number, since it is larger than the sum of its proper divisors (21315265775).

68961153745 is a wasteful number, since it uses less digits than its factorization.

68961153745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253839175.

The product of its digits is 5443200, while the sum is 55.

The spelling of 68961153745 in words is "sixty-eight billion, nine hundred sixty-one million, one hundred fifty-three thousand, seven hundred forty-five".