11737809813 has 16 divisors (see below), whose sum is σ = 15692995136. Its totient is φ = 7803941760.

The previous prime is 11737809781. The next prime is 11737809821. The reversal of 11737809813 is 31890873711.

11737809813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11737809813 - 2⁵ = 11737809781 is a prime.

It is a super-4 number, since 4×11737809813⁴ (a number of 41 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11737809913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2729481 + ... + 2733777.

It is an arithmetic number, because the mean of its divisors is an integer number (980812196).

Almost surely, 2^11737809813 is an apocalyptic number.

It is an amenable number.

11737809813 is a deficient number, since it is larger than the sum of its proper divisors (3955185323).

11737809813 is a wasteful number, since it uses less digits than its factorization.

11737809813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 11737809813 in words is "eleven billion, seven hundred thirty-seven million, eight hundred nine thousand, eight hundred thirteen".