69981535913 has 2 divisors, whose sum is σ = 69981535914. Its totient is φ = 69981535912.

The previous prime is 69981535891. The next prime is 69981535937. The reversal of 69981535913 is 31953518996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69217400464 + 764135449 = 263092^2 + 27643^2 .

It is a cyclic number.

It is not a de Polignac number, because 69981535913 - 2⁶ = 69981535849 is a prime.

It is not a weakly prime, because it can be changed into another prime (69981535973) 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, 34990767956 + 34990767957.

It is an arithmetic number, because the mean of its divisors is an integer number (34990767957).

Almost surely, 2^69981535913 is an apocalyptic number.

It is an amenable number.

69981535913 is a deficient number, since it is larger than the sum of its proper divisors (1).

69981535913 is an equidigital number, since it uses as much as digits as its factorization.

69981535913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7873200, while the sum is 59.

The spelling of 69981535913 in words is "sixty-nine billion, nine hundred eighty-one million, five hundred thirty-five thousand, nine hundred thirteen".