12535423519 has 8 divisors (see below), whose sum is σ = 12587803488. Its totient is φ = 12483072000.

The previous prime is 12535423493. The next prime is 12535423543. The reversal of 12535423519 is 91532453521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12535423519 - 2⁵ = 12535423487 is a prime.

It is a super-2 number, since 2×12535423519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535423559) 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 7 ways as a sum of consecutive naturals, for example, 1787019 + ... + 1794019.

It is an arithmetic number, because the mean of its divisors is an integer number (1573475436).

Almost surely, 2^12535423519 is an apocalyptic number.

12535423519 is a deficient number, since it is larger than the sum of its proper divisors (52379969).

12535423519 is an equidigital number, since it uses as much as digits as its factorization.

12535423519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14225.

The product of its digits is 162000, while the sum is 40.

The spelling of 12535423519 in words is "twelve billion, five hundred thirty-five million, four hundred twenty-three thousand, five hundred nineteen".