12558480819 has 4 divisors (see below), whose sum is σ = 16744641096. Its totient is φ = 8372320544.

The previous prime is 12558480811. The next prime is 12558480821. The reversal of 12558480819 is 91808485521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12558480819 - 2³ = 12558480811 is a prime.

It is a super-2 number, since 2×12558480819² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12558480811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093080134 + ... + 2093080139.

It is an arithmetic number, because the mean of its divisors is an integer number (4186160274).

Almost surely, 2^12558480819 is an apocalyptic number.

12558480819 is a deficient number, since it is larger than the sum of its proper divisors (4186160277).

12558480819 is an equidigital number, since it uses as much as digits as its factorization.

12558480819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186160276.

The product of its (nonzero) digits is 921600, while the sum is 51.

It can be divided in two parts, 125584 and 80819, that added together give a triangular number (206403 = T₆₄₂).

The spelling of 12558480819 in words is "twelve billion, five hundred fifty-eight million, four hundred eighty thousand, eight hundred nineteen".