779000005789 has 4 divisors (see below), whose sum is σ = 780258487840. Its totient is φ = 777741523740.

The previous prime is 779000005759. The next prime is 779000005799. The reversal of 779000005789 is 987500000977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987500000977 = 7 ⋅141071428711.

It is a cyclic number.

It is not a de Polignac number, because 779000005789 - 2⁷ = 779000005661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779000005709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629240097 + ... + 629241334.

It is an arithmetic number, because the mean of its divisors is an integer number (195064621960).

Almost surely, 2^779000005789 is an apocalyptic number.

It is an amenable number.

779000005789 is a deficient number, since it is larger than the sum of its proper divisors (1258482051).

779000005789 is a wasteful number, since it uses less digits than its factorization.

779000005789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258482050.

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 779000005789 in words is "seven hundred seventy-nine billion, five thousand, seven hundred eighty-nine".