69946928657 has 2 divisors, whose sum is σ = 69946928658. Its totient is φ = 69946928656.

The previous prime is 69946928641. The next prime is 69946928659. The reversal of 69946928657 is 75682964996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67412410321 + 2534518336 = 259639^2 + 50344^2 .

It is a cyclic number.

It is not a de Polignac number, because 69946928657 - 2⁴ = 69946928641 is a prime.

Together with 69946928659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69946928659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34973464328 + 34973464329.

It is an arithmetic number, because the mean of its divisors is an integer number (34973464329).

Almost surely, 2^69946928657 is an apocalyptic number.

It is an amenable number.

69946928657 is a deficient number, since it is larger than the sum of its proper divisors (1).

69946928657 is an equidigital number, since it uses as much as digits as its factorization.

69946928657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 71.

The spelling of 69946928657 in words is "sixty-nine billion, nine hundred forty-six million, nine hundred twenty-eight thousand, six hundred fifty-seven".