11551694783 has 4 divisors (see below), whose sum is σ = 11747486280. Its totient is φ = 11355903288.

The previous prime is 11551694771. The next prime is 11551694801. The reversal of 11551694783 is 38749615511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38749615511 = 449 ⋅86302039.

It is a cyclic number.

It is not a de Polignac number, because 11551694783 - 2⁶ = 11551694719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551624783) 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, 97895660 + ... + 97895777.

It is an arithmetic number, because the mean of its divisors is an integer number (2936871570).

Almost surely, 2^11551694783 is an apocalyptic number.

11551694783 is a deficient number, since it is larger than the sum of its proper divisors (195791497).

11551694783 is an equidigital number, since it uses as much as digits as its factorization.

11551694783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195791496.

The product of its digits is 907200, while the sum is 50.

The spelling of 11551694783 in words is "eleven billion, five hundred fifty-one million, six hundred ninety-four thousand, seven hundred eighty-three".