10273720999 has 2 divisors, whose sum is σ = 10273721000. Its totient is φ = 10273720998.

The previous prime is 10273720997. The next prime is 10273721009. The reversal of 10273720999 is 99902737201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10273720999 - 2¹ = 10273720997 is a prime.

Together with 10273720997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10273720991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5136860499 + 5136860500.

It is an arithmetic number, because the mean of its divisors is an integer number (5136860500).

Almost surely, 2^10273720999 is an apocalyptic number.

10273720999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10273720999 is an equidigital number, since it uses as much as digits as its factorization.

10273720999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 10273720999 in words is "ten billion, two hundred seventy-three million, seven hundred twenty thousand, nine hundred ninety-nine".