68150027531 has 2 divisors, whose sum is σ = 68150027532. Its totient is φ = 68150027530.

The previous prime is 68150027501. The next prime is 68150027549. The reversal of 68150027531 is 13572005186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68150027531 - 2¹⁰ = 68150026507 is a prime.

It is a super-3 number, since 3×68150027531³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (68150027501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075013765 + 34075013766.

It is an arithmetic number, because the mean of its divisors is an integer number (34075013766).

Almost surely, 2^68150027531 is an apocalyptic number.

68150027531 is a deficient number, since it is larger than the sum of its proper divisors (1).

68150027531 is an equidigital number, since it uses as much as digits as its factorization.

68150027531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 68150027531 in words is "sixty-eight billion, one hundred fifty million, twenty-seven thousand, five hundred thirty-one".