779471325989 has 12 divisors (see below), whose sum is σ = 822959817120. Its totient is φ = 738173203560.

The previous prime is 779471325979. The next prime is 779471325991. The reversal of 779471325989 is 989523174977.

779471325989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-779471325989 is a prime.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779471325949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580442 + ... + 1376900.

It is an arithmetic number, because the mean of its divisors is an integer number (68579984760).

Almost surely, 2^779471325989 is an apocalyptic number.

It is an amenable number.

779471325989 is a deficient number, since it is larger than the sum of its proper divisors (43488491131).

779471325989 is a wasteful number, since it uses less digits than its factorization.

779471325989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799208 (or 799189 counting only the distinct ones).

The product of its digits is 240045120, while the sum is 71.

The spelling of 779471325989 in words is "seven hundred seventy-nine billion, four hundred seventy-one million, three hundred twenty-five thousand, nine hundred eighty-nine".