12064963261 has 4 divisors (see below), whose sum is σ = 12993037372. Its totient is φ = 11136889152.

The previous prime is 12064963247. The next prime is 12064963321. The reversal of 12064963261 is 16236946021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16236946021 = 21269 ⋅763409.

It can be written as a sum of positive squares in 2 ways, for example, as 867302500 + 11197660761 = 29450^2 + 105819^2 .

It is a cyclic number.

It is not a de Polignac number, because 12064963261 - 2⁷ = 12064963133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12064963231) 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 3 ways as a sum of consecutive naturals, for example, 464037036 + ... + 464037061.

It is an arithmetic number, because the mean of its divisors is an integer number (3248259343).

Almost surely, 2^12064963261 is an apocalyptic number.

It is an amenable number.

12064963261 is a deficient number, since it is larger than the sum of its proper divisors (928074111).

12064963261 is an equidigital number, since it uses as much as digits as its factorization.

12064963261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928074110.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 12064963261 in words is "twelve billion, sixty-four million, nine hundred sixty-three thousand, two hundred sixty-one".