19706825141 has 2 divisors, whose sum is σ = 19706825142. Its totient is φ = 19706825140.

The previous prime is 19706825129. The next prime is 19706825167. The reversal of 19706825141 is 14152860791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15409498225 + 4297326916 = 124135^2 + 65554^2 .

It is a cyclic number.

It is not a de Polignac number, because 19706825141 - 2²² = 19702630837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19706825092 and 19706825101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19706825641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9853412570 + 9853412571.

It is an arithmetic number, because the mean of its divisors is an integer number (9853412571).

Almost surely, 2^19706825141 is an apocalyptic number.

It is an amenable number.

19706825141 is a deficient number, since it is larger than the sum of its proper divisors (1).

19706825141 is an equidigital number, since it uses as much as digits as its factorization.

19706825141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 19706825141 in words is "nineteen billion, seven hundred six million, eight hundred twenty-five thousand, one hundred forty-one".