69772769797 has 2 divisors, whose sum is σ = 69772769798. Its totient is φ = 69772769796.

The previous prime is 69772769789. The next prime is 69772769819. The reversal of 69772769797 is 79796727796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66316035361 + 3456734436 = 257519^2 + 58794^2 .

It is a cyclic number.

It is not a de Polignac number, because 69772769797 - 2³ = 69772769789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69772769747) 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, 34886384898 + 34886384899.

It is an arithmetic number, because the mean of its divisors is an integer number (34886384899).

Almost surely, 2^69772769797 is an apocalyptic number.

It is an amenable number.

69772769797 is a deficient number, since it is larger than the sum of its proper divisors (1).

69772769797 is an equidigital number, since it uses as much as digits as its factorization.

69772769797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882165816, while the sum is 76.

The spelling of 69772769797 in words is "sixty-nine billion, seven hundred seventy-two million, seven hundred sixty-nine thousand, seven hundred ninety-seven".