789900012061 has 2 divisors, whose sum is σ = 789900012062. Its totient is φ = 789900012060.

The previous prime is 789900012059. The next prime is 789900012119. The reversal of 789900012061 is 160210009987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 789689936025 + 210076036 = 888645^2 + 14494^2 .

It is a cyclic number.

It is not a de Polignac number, because 789900012061 - 2¹ = 789900012059 is a prime.

Together with 789900012059, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 789900011999 and 789900012017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789900010061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394950006030 + 394950006031.

It is an arithmetic number, because the mean of its divisors is an integer number (394950006031).

Almost surely, 2^789900012061 is an apocalyptic number.

It is an amenable number.

789900012061 is a deficient number, since it is larger than the sum of its proper divisors (1).

789900012061 is an equidigital number, since it uses as much as digits as its factorization.

789900012061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 789900012061 in words is "seven hundred eighty-nine billion, nine hundred million, twelve thousand, sixty-one".