68161835348 has 6 divisors (see below), whose sum is σ = 119283211866. Its totient is φ = 34080917672.

The previous prime is 68161835341. The next prime is 68161835353. The reversal of 68161835348 is 84353816186.

It can be written as a sum of positive squares in only one way, i.e., 64035314704 + 4126520644 = 253052^2 + 64238^2 .

It is a super-2 number, since 2×68161835348² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68161835348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68161835341) 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 as a sum of consecutive naturals, namely, 8520229415 + ... + 8520229422.

It is an arithmetic number, because the mean of its divisors is an integer number (19880535311).

Almost surely, 2^68161835348 is an apocalyptic number.

It is an amenable number.

68161835348 is a deficient number, since it is larger than the sum of its proper divisors (51121376518).

68161835348 is a wasteful number, since it uses less digits than its factorization.

68161835348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040458841 (or 17040458839 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The spelling of 68161835348 in words is "sixty-eight billion, one hundred sixty-one million, eight hundred thirty-five thousand, three hundred forty-eight".