789342738887 has 2 divisors, whose sum is σ = 789342738888. Its totient is φ = 789342738886.

The previous prime is 789342738853. The next prime is 789342738913. The reversal of 789342738887 is 788837243987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 789342738887 - 2⁶ = 789342738823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789342738817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394671369443 + 394671369444.

It is an arithmetic number, because the mean of its divisors is an integer number (394671369444).

Almost surely, 2^789342738887 is an apocalyptic number.

789342738887 is a deficient number, since it is larger than the sum of its proper divisors (1).

789342738887 is an equidigital number, since it uses as much as digits as its factorization.

789342738887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 910393344, while the sum is 74.

The spelling of 789342738887 in words is "seven hundred eighty-nine billion, three hundred forty-two million, seven hundred thirty-eight thousand, eight hundred eighty-seven".