11865260653 has 8 divisors (see below), whose sum is σ = 12603360888. Its totient is φ = 11131620864.

The previous prime is 11865260647. The next prime is 11865260683. The reversal of 11865260653 is 35606256811.

It can be written as a sum of positive squares in 4 ways, for example, as 524501604 + 11340759049 = 22902^2 + 106493^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11865260653 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 (11865260683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109626 + ... + 1120267.

It is an arithmetic number, because the mean of its divisors is an integer number (1575420111).

Almost surely, 2^11865260653 is an apocalyptic number.

It is an amenable number.

11865260653 is a deficient number, since it is larger than the sum of its proper divisors (738100235).

11865260653 is a wasteful number, since it uses less digits than its factorization.

11865260653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230223.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 11865260653 in words is "eleven billion, eight hundred sixty-five million, two hundred sixty thousand, six hundred fifty-three".