11690684749 has 4 divisors (see below), whose sum is σ = 11712057664. Its totient is φ = 11669311836.

The previous prime is 11690684737. The next prime is 11690684771. The reversal of 11690684749 is 94748609611.

11690684749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 94748609611 = 244843 ⋅386977.

It is a cyclic number.

It is not a de Polignac number, because 11690684749 - 2²³ = 11682296141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11690684749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11690694749) 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 3 ways as a sum of consecutive naturals, for example, 10685637 + ... + 10686730.

It is an arithmetic number, because the mean of its divisors is an integer number (2928014416).

Almost surely, 2^11690684749 is an apocalyptic number.

It is an amenable number.

11690684749 is a deficient number, since it is larger than the sum of its proper divisors (21372915).

11690684749 is an equidigital number, since it uses as much as digits as its factorization.

11690684749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372914.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 11690684749 in words is "eleven billion, six hundred ninety million, six hundred eighty-four thousand, seven hundred forty-nine".