11851498013 has 4 divisors (see below), whose sum is σ = 11904643968. Its totient is φ = 11798352060.

The previous prime is 11851497979. The next prime is 11851498027. The reversal of 11851498013 is 31089415811.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 11851498013 - 2²² = 11847303709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11851498313) 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, 26572643 + ... + 26573088.

It is an arithmetic number, because the mean of its divisors is an integer number (2976160992).

Almost surely, 2^11851498013 is an apocalyptic number.

It is an amenable number.

11851498013 is a deficient number, since it is larger than the sum of its proper divisors (53145955).

11851498013 is an equidigital number, since it uses as much as digits as its factorization.

11851498013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53145954.

The product of its (nonzero) digits is 34560, while the sum is 41.

The spelling of 11851498013 in words is "eleven billion, eight hundred fifty-one million, four hundred ninety-eight thousand, thirteen".