11854765455671 has 2 divisors, whose sum is σ = 11854765455672. Its totient is φ = 11854765455670.

The previous prime is 11854765455569. The next prime is 11854765455691. The reversal of 11854765455671 is 17655456745811.

11854765455671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11854765455671 - 2³⁸ = 11579887548727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11854765455598 and 11854765455607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11854765455691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927382727835 + 5927382727836.

It is an arithmetic number, because the mean of its divisors is an integer number (5927382727836).

Almost surely, 2^{11854765455671} is an apocalyptic number.

11854765455671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11854765455671 is an equidigital number, since it uses as much as digits as its factorization.

11854765455671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120000, while the sum is 65.

The spelling of 11854765455671 in words is "eleven trillion, eight hundred fifty-four billion, seven hundred sixty-five million, four hundred fifty-five thousand, six hundred seventy-one".