1863142973453 has 2 divisors, whose sum is σ = 1863142973454. Its totient is φ = 1863142973452.

The previous prime is 1863142973431. The next prime is 1863142973479. The reversal of 1863142973453 is 3543792413681.

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., 972586495204 + 890556478249 = 986198^2 + 943693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1863142973453 - 2³⁰ = 1862069231629 is a prime.

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 (1863142973423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 931571486726 + 931571486727.

It is an arithmetic number, because the mean of its divisors is an integer number (931571486727).

Almost surely, 2^{1863142973453} is an apocalyptic number.

It is an amenable number.

1863142973453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1863142973453 is an equidigital number, since it uses as much as digits as its factorization.

1863142973453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 56.

The spelling of 1863142973453 in words is "one trillion, eight hundred sixty-three billion, one hundred forty-two million, nine hundred seventy-three thousand, four hundred fifty-three".