919773355453 has 2 divisors, whose sum is σ = 919773355454. Its totient is φ = 919773355452.

The previous prime is 919773355441. The next prime is 919773355483. The reversal of 919773355453 is 354553377919.

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., 918956138884 + 817216569 = 958622^2 + 28587^2 .

It is a cyclic number.

It is not a de Polignac number, because 919773355453 - 2⁵ = 919773355421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 919773355391 and 919773355400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919773355483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459886677726 + 459886677727.

It is an arithmetic number, because the mean of its divisors is an integer number (459886677727).

Almost surely, 2^919773355453 is an apocalyptic number.

It is an amenable number.

919773355453 is a deficient number, since it is larger than the sum of its proper divisors (1).

919773355453 is an equidigital number, since it uses as much as digits as its factorization.

919773355453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53581500, while the sum is 61.

The spelling of 919773355453 in words is "nine hundred nineteen billion, seven hundred seventy-three million, three hundred fifty-five thousand, four hundred fifty-three".