11745769551 has 4 divisors (see below), whose sum is σ = 15661026072. Its totient is φ = 7830513032.

The previous prime is 11745769549. The next prime is 11745769561. The reversal of 11745769551 is 15596754711.

11745769551 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 an emirpimes, since its reverse is a distinct semiprime: 15596754711 = 3 ⋅5198918237.

It is a cyclic number.

It is not a de Polignac number, because 11745769551 - 2¹ = 11745769549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11745769494 and 11745769503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11745769561) 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, 1957628256 + ... + 1957628261.

It is an arithmetic number, because the mean of its divisors is an integer number (3915256518).

Almost surely, 2^11745769551 is an apocalyptic number.

11745769551 is a deficient number, since it is larger than the sum of its proper divisors (3915256521).

11745769551 is an equidigital number, since it uses as much as digits as its factorization.

11745769551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915256520.

The product of its digits is 1323000, while the sum is 51.

The spelling of 11745769551 in words is "eleven billion, seven hundred forty-five million, seven hundred sixty-nine thousand, five hundred fifty-one".