769555223137 has 2 divisors, whose sum is σ = 769555223138. Its totient is φ = 769555223136.

The previous prime is 769555223131. The next prime is 769555223141. The reversal of 769555223137 is 731322555967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421491802176 + 348063420961 = 649224^2 + 589969^2 .

It is an emirp because it is prime and its reverse (731322555967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769555223137 - 2⁷ = 769555223009 is a prime.

It is not a weakly prime, because it can be changed into another prime (769555223131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384777611568 + 384777611569.

It is an arithmetic number, because the mean of its divisors is an integer number (384777611569).

Almost surely, 2^769555223137 is an apocalyptic number.

It is an amenable number.

769555223137 is a deficient number, since it is larger than the sum of its proper divisors (1).

769555223137 is an equidigital number, since it uses as much as digits as its factorization.

769555223137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907000, while the sum is 55.

The spelling of 769555223137 in words is "seven hundred sixty-nine billion, five hundred fifty-five million, two hundred twenty-three thousand, one hundred thirty-seven".