11653144639 has 8 divisors (see below), whose sum is σ = 11795584752. Its totient is φ = 11510753280.

The previous prime is 11653144637. The next prime is 11653144651. The reversal of 11653144639 is 93644135611.

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

It is a cyclic number.

It is not a de Polignac number, because 11653144639 - 2¹ = 11653144637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11653144595 and 11653144604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11653144637) 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, 778849 + ... + 793669.

It is an arithmetic number, because the mean of its divisors is an integer number (1474448094).

Almost surely, 2^11653144639 is an apocalyptic number.

11653144639 is a deficient number, since it is larger than the sum of its proper divisors (142440113).

11653144639 is an equidigital number, since it uses as much as digits as its factorization.

11653144639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24377.

The product of its digits is 233280, while the sum is 43.

The spelling of 11653144639 in words is "eleven billion, six hundred fifty-three million, one hundred forty-four thousand, six hundred thirty-nine".