69920946517 has 2 divisors, whose sum is σ = 69920946518. Its totient is φ = 69920946516.

The previous prime is 69920946503. The next prime is 69920946559. The reversal of 69920946517 is 71564902996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53412294321 + 16508652196 = 231111^2 + 128486^2 .

It is a cyclic number.

It is not a de Polignac number, because 69920946517 - 2¹⁵ = 69920913749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69920946577) 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, 34960473258 + 34960473259.

It is an arithmetic number, because the mean of its divisors is an integer number (34960473259).

Almost surely, 2^69920946517 is an apocalyptic number.

It is an amenable number.

69920946517 is a deficient number, since it is larger than the sum of its proper divisors (1).

69920946517 is an equidigital number, since it uses as much as digits as its factorization.

69920946517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 69920946517 in words is "sixty-nine billion, nine hundred twenty million, nine hundred forty-six thousand, five hundred seventeen".