11386513949 has 4 divisors (see below), whose sum is σ = 11386843680. Its totient is φ = 11386184220.

The previous prime is 11386513921. The next prime is 11386513981. The reversal of 11386513949 is 94931568311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94931568311 = 277 ⋅342713243.

It is a cyclic number.

It is not a de Polignac number, because 11386513949 - 2²⁴ = 11369736733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11386513897 and 11386513906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11386513849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106079 + ... + 184460.

It is an arithmetic number, because the mean of its divisors is an integer number (2846710920).

Almost surely, 2^11386513949 is an apocalyptic number.

It is an amenable number.

11386513949 is a deficient number, since it is larger than the sum of its proper divisors (329731).

11386513949 is an equidigital number, since it uses as much as digits as its factorization.

11386513949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329730.

The product of its digits is 699840, while the sum is 50.

The spelling of 11386513949 in words is "eleven billion, three hundred eighty-six million, five hundred thirteen thousand, nine hundred forty-nine".