769620007789 has 2 divisors, whose sum is σ = 769620007790. Its totient is φ = 769620007788.

The previous prime is 769620007769. The next prime is 769620007813. The reversal of 769620007789 is 987700026967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442530952900 + 327089054889 = 665230^2 + 571917^2 .

It is a cyclic number.

It is not a de Polignac number, because 769620007789 - 2⁵ = 769620007757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769620007769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384810003894 + 384810003895.

It is an arithmetic number, because the mean of its divisors is an integer number (384810003895).

Almost surely, 2^769620007789 is an apocalyptic number.

It is an amenable number.

769620007789 is a deficient number, since it is larger than the sum of its proper divisors (1).

769620007789 is an equidigital number, since it uses as much as digits as its factorization.

769620007789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 769620007789 in words is "seven hundred sixty-nine billion, six hundred twenty million, seven thousand, seven hundred eighty-nine".