68137455269 has 8 divisors (see below), whose sum is σ = 75085282272. Its totient is φ = 61433411760.

The previous prime is 68137455259. The next prime is 68137455271. The reversal of 68137455269 is 96255473186.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68137455269 is a prime.

It is a super-2 number, since 2×68137455269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68137455259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60945287 + ... + 60946404.

It is an arithmetic number, because the mean of its divisors is an integer number (9385660284).

Almost surely, 2^68137455269 is an apocalyptic number.

It is an amenable number.

68137455269 is a deficient number, since it is larger than the sum of its proper divisors (6947827003).

68137455269 is a wasteful number, since it uses less digits than its factorization.

68137455269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121891747.

The product of its digits is 10886400, while the sum is 56.

The spelling of 68137455269 in words is "sixty-eight billion, one hundred thirty-seven million, four hundred fifty-five thousand, two hundred sixty-nine".