10505272897 has 4 divisors (see below), whose sum is σ = 12006026176. Its totient is φ = 9004519620.

The previous prime is 10505272891. The next prime is 10505272909. The reversal of 10505272897 is 79827250501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10505272897 - 2⁷ = 10505272769 is a prime.

It is a super-2 number, since 2×10505272897² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10505272891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750376629 + ... + 750376642.

It is an arithmetic number, because the mean of its divisors is an integer number (3001506544).

Almost surely, 2^10505272897 is an apocalyptic number.

It is an amenable number.

10505272897 is a deficient number, since it is larger than the sum of its proper divisors (1500753279).

10505272897 is an equidigital number, since it uses as much as digits as its factorization.

10505272897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500753278.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 10505272897 in words is "ten billion, five hundred five million, two hundred seventy-two thousand, eight hundred ninety-seven".