69915038586641 has 2 divisors, whose sum is σ = 69915038586642. Its totient is φ = 69915038586640.

The previous prime is 69915038586581. The next prime is 69915038586647. The reversal of 69915038586641 is 14668583051996.

69915038586641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50428958782225 + 19486079804416 = 7101335^2 + 4414304^2 .

It is a cyclic number.

It is not a de Polignac number, because 69915038586641 - 2³⁸ = 69640160679697 is a prime.

It is a super-2 number, since 2×69915038586641² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69915038586647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34957519293320 + 34957519293321.

It is an arithmetic number, because the mean of its divisors is an integer number (34957519293321).

Almost surely, 2^{69915038586641} is an apocalyptic number.

It is an amenable number.

69915038586641 is a deficient number, since it is larger than the sum of its proper divisors (1).

69915038586641 is an equidigital number, since it uses as much as digits as its factorization.

69915038586641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 335923200, while the sum is 71.

The spelling of 69915038586641 in words is "sixty-nine trillion, nine hundred fifteen billion, thirty-eight million, five hundred eighty-six thousand, six hundred forty-one".