11774616851 has 2 divisors, whose sum is σ = 11774616852. Its totient is φ = 11774616850.

The previous prime is 11774616839. The next prime is 11774616869. The reversal of 11774616851 is 15861647711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11774616851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11774616796 and 11774616805.

It is not a weakly prime, because it can be changed into another prime (11774616811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5887308425 + 5887308426.

It is an arithmetic number, because the mean of its divisors is an integer number (5887308426).

Almost surely, 2^11774616851 is an apocalyptic number.

11774616851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11774616851 is an equidigital number, since it uses as much as digits as its factorization.

11774616851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 47.

The spelling of 11774616851 in words is "eleven billion, seven hundred seventy-four million, six hundred sixteen thousand, eight hundred fifty-one".