999995273801 has 2 divisors, whose sum is σ = 999995273802. Its totient is φ = 999995273800.

The previous prime is 999995273791. The next prime is 999995273833. The reversal of 999995273801 is 108372599999.

999995273801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541476694201 + 458518579600 = 735851^2 + 677140^2 .

It is a cyclic number.

It is not a de Polignac number, because 999995273801 - 2⁶ = 999995273737 is a prime.

It is not a weakly prime, because it can be changed into another prime (999995263801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499997636900 + 499997636901.

It is an arithmetic number, because the mean of its divisors is an integer number (499997636901).

Almost surely, 2^999995273801 is an apocalyptic number.

It is an amenable number.

999995273801 is a deficient number, since it is larger than the sum of its proper divisors (1).

999995273801 is an equidigital number, since it uses as much as digits as its factorization.

999995273801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 99202320, while the sum is 71.

The spelling of 999995273801 in words is "nine hundred ninety-nine billion, nine hundred ninety-five million, two hundred seventy-three thousand, eight hundred one".