11543454079 has 2 divisors, whose sum is σ = 11543454080. Its totient is φ = 11543454078.

The previous prime is 11543454077. The next prime is 11543454119. The reversal of 11543454079 is 97045434511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11543454079 - 2¹ = 11543454077 is a prime.

Together with 11543454077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11543454073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771727039 + 5771727040.

It is an arithmetic number, because the mean of its divisors is an integer number (5771727040).

Almost surely, 2^11543454079 is an apocalyptic number.

11543454079 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543454079 is an equidigital number, since it uses as much as digits as its factorization.

11543454079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 11543454079 in words is "eleven billion, five hundred forty-three million, four hundred fifty-four thousand, seventy-nine".