10897269505 has 4 divisors (see below), whose sum is σ = 13076723412. Its totient is φ = 8717815600.

The previous prime is 10897269503. The next prime is 10897269511. The reversal of 10897269505 is 50596279801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3117323889 + 7779945616 = 55833^2 + 88204^2 .

It is not a de Polignac number, because 10897269505 - 2¹ = 10897269503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10897269503) 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, 1089726946 + ... + 1089726955.

It is an arithmetic number, because the mean of its divisors is an integer number (3269180853).

Almost surely, 2^10897269505 is an apocalyptic number.

It is an amenable number.

10897269505 is a deficient number, since it is larger than the sum of its proper divisors (2179453907).

10897269505 is an equidigital number, since it uses as much as digits as its factorization.

10897269505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179453906.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 10897269505 in words is "ten billion, eight hundred ninety-seven million, two hundred sixty-nine thousand, five hundred five".