19672822061 has 2 divisors, whose sum is σ = 19672822062. Its totient is φ = 19672822060.

The previous prime is 19672822051. The next prime is 19672822073. The reversal of 19672822061 is 16022827691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9994000900 + 9678821161 = 99970^2 + 98381^2 .

It is a cyclic number.

It is not a de Polignac number, because 19672822061 - 2³⁴ = 2492952877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19672822031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9836411030 + 9836411031.

It is an arithmetic number, because the mean of its divisors is an integer number (9836411031).

Almost surely, 2^19672822061 is an apocalyptic number.

It is an amenable number.

19672822061 is a deficient number, since it is larger than the sum of its proper divisors (1).

19672822061 is an equidigital number, since it uses as much as digits as its factorization.

19672822061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 19672822061 in words is "nineteen billion, six hundred seventy-two million, eight hundred twenty-two thousand, sixty-one".