139864162710721 has 2 divisors, whose sum is σ = 139864162710722. Its totient is φ = 139864162710720.

The previous prime is 139864162710653. The next prime is 139864162710737. The reversal of 139864162710721 is 127017261468931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126887157936400 + 12977004774321 = 11264420^2 + 3602361^2 .

It is a cyclic number.

It is not a de Polignac number, because 139864162710721 - 2³¹ = 139862015227073 is a prime.

It is not a weakly prime, because it can be changed into another prime (139864162710521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69932081355360 + 69932081355361.

It is an arithmetic number, because the mean of its divisors is an integer number (69932081355361).

Almost surely, 2^{139864162710721} is an apocalyptic number.

It is an amenable number.

139864162710721 is a deficient number, since it is larger than the sum of its proper divisors (1).

139864162710721 is an equidigital number, since it uses as much as digits as its factorization.

139864162710721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 139864162710721 in words is "one hundred thirty-nine trillion, eight hundred sixty-four billion, one hundred sixty-two million, seven hundred ten thousand, seven hundred twenty-one".