999999997753 has 2 divisors, whose sum is σ = 999999997754. Its totient is φ = 999999997752.

The previous prime is 999999997723. The next prime is 999999997757. The reversal of 999999997753 is 357799999999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679630413609 + 320369584144 = 824397^2 + 566012^2 .

It is a cyclic number.

It is not a de Polignac number, because 999999997753 - 2⁵ = 999999997721 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (999999997757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999998876 + 499999998877.

It is an arithmetic number, because the mean of its divisors is an integer number (499999998877).

Almost surely, 2^999999997753 is an apocalyptic number.

It is an amenable number.

999999997753 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999997753 is an equidigital number, since it uses as much as digits as its factorization.

999999997753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31639339935, while the sum is 94.

The spelling of 999999997753 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-seven thousand, seven hundred fifty-three".