68149550141 has 4 divisors (see below), whose sum is σ = 68252651484. Its totient is φ = 68046448800.

The previous prime is 68149550101. The next prime is 68149550159. The reversal of 68149550141 is 14105594186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21954645241 + 46194904900 = 148171^2 + 214930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68149550141 is a prime.

It is a super-3 number, since 3×68149550141³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68149550092 and 68149550101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68149550101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51549680 + ... + 51551001.

It is an arithmetic number, because the mean of its divisors is an integer number (17063162871).

Almost surely, 2^68149550141 is an apocalyptic number.

It is an amenable number.

68149550141 is a deficient number, since it is larger than the sum of its proper divisors (103101343).

68149550141 is a wasteful number, since it uses less digits than its factorization.

68149550141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103101342.

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 68149550141 in words is "sixty-eight billion, one hundred forty-nine million, five hundred fifty thousand, one hundred forty-one".