68935325591 has 12 divisors (see below), whose sum is σ = 76498432584. Its totient is φ = 61606266000.

The previous prime is 68935325581. The next prime is 68935325593. The reversal of 68935325591 is 19552353986.

It is not a de Polignac number, because 68935325591 - 2¹⁰ = 68935324567 is a prime.

It is a super-2 number, since 2×68935325591² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68935325593) 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 11 ways as a sum of consecutive naturals, for example, 861860 + ... + 938441.

It is an arithmetic number, because the mean of its divisors is an integer number (6374869382).

Almost surely, 2^68935325591 is an apocalyptic number.

68935325591 is a deficient number, since it is larger than the sum of its proper divisors (7563106993).

68935325591 is a wasteful number, since it uses less digits than its factorization.

68935325591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800430 (or 1800371 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 56.

The spelling of 68935325591 in words is "sixty-eight billion, nine hundred thirty-five million, three hundred twenty-five thousand, five hundred ninety-one".