12609565270 has 32 divisors (see below), whose sum is σ = 24662522880. Its totient is φ = 4624218720.

The previous prime is 12609565253. The next prime is 12609565271. The reversal of 12609565270 is 7256590621.

It is a super-2 number, since 2×12609565270² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609565271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064532 + ... + 1076311.

It is an arithmetic number, because the mean of its divisors is an integer number (770703840).

Almost surely, 2^12609565270 is an apocalyptic number.

12609565270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12609565270 is a deficient number, since it is larger than the sum of its proper divisors (12052957610).

12609565270 is a wasteful number, since it uses less digits than its factorization.

12609565270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140900.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 12609565270 in words is "twelve billion, six hundred nine million, five hundred sixty-five thousand, two hundred seventy".