22851379121789 has 2 divisors, whose sum is σ = 22851379121790. Its totient is φ = 22851379121788.

The previous prime is 22851379121777. The next prime is 22851379121821. The reversal of 22851379121789 is 98712197315822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21383688062500 + 1467691059289 = 4624250^2 + 1211483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22851379121789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22851379121089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11425689560894 + 11425689560895.

It is an arithmetic number, because the mean of its divisors is an integer number (11425689560895).

Almost surely, 2^{22851379121789} is an apocalyptic number.

It is an amenable number.

22851379121789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22851379121789 is an equidigital number, since it uses as much as digits as its factorization.

22851379121789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 65.

The spelling of 22851379121789 in words is "twenty-two trillion, eight hundred fifty-one billion, three hundred seventy-nine million, one hundred twenty-one thousand, seven hundred eighty-nine".