19053094661 has 2 divisors, whose sum is σ = 19053094662. Its totient is φ = 19053094660.

The previous prime is 19053094583. The next prime is 19053094673. The reversal of 19053094661 is 16649035091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9688661761 + 9364432900 = 98431^2 + 96770^2 .

It is a cyclic number.

It is not a de Polignac number, because 19053094661 - 2¹⁴ = 19053078277 is a prime.

It is a super-2 number, since 2×19053094661² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19053034661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9526547330 + 9526547331.

It is an arithmetic number, because the mean of its divisors is an integer number (9526547331).

Almost surely, 2^19053094661 is an apocalyptic number.

It is an amenable number.

19053094661 is a deficient number, since it is larger than the sum of its proper divisors (1).

19053094661 is an equidigital number, since it uses as much as digits as its factorization.

19053094661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 19053094661 in words is "nineteen billion, fifty-three million, ninety-four thousand, six hundred sixty-one".