10821267265 has 8 divisors (see below), whose sum is σ = 13168415808. Its totient is φ = 8535083760.

The previous prime is 10821267221. The next prime is 10821267269. The reversal of 10821267265 is 56276212801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10821267265 - 2²¹ = 10819170113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10821267269) 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 in 7 ways as a sum of consecutive naturals, for example, 15240867 + ... + 15241576.

It is an arithmetic number, because the mean of its divisors is an integer number (1646051976).

Almost surely, 2^10821267265 is an apocalyptic number.

It is an amenable number.

10821267265 is a deficient number, since it is larger than the sum of its proper divisors (2347148543).

10821267265 is an equidigital number, since it uses as much as digits as its factorization.

10821267265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30482519.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 10821267265 in words is "ten billion, eight hundred twenty-one million, two hundred sixty-seven thousand, two hundred sixty-five".