19773000053 has 2 divisors, whose sum is σ = 19773000054. Its totient is φ = 19773000052.

The previous prime is 19773000043. The next prime is 19773000077. The reversal of 19773000053 is 35000037791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15140564209 + 4632435844 = 123047^2 + 68062^2 .

It is a cyclic number.

It is not a de Polignac number, because 19773000053 - 2⁶ = 19772999989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19772999977 and 19773000022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19773000043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9886500026 + 9886500027.

It is an arithmetic number, because the mean of its divisors is an integer number (9886500027).

Almost surely, 2^19773000053 is an apocalyptic number.

It is an amenable number.

19773000053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19773000053 is an equidigital number, since it uses as much as digits as its factorization.

19773000053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The spelling of 19773000053 in words is "nineteen billion, seven hundred seventy-three million, fifty-three", and thus it is an aban number.