12523044519 has 24 divisors (see below), whose sum is σ = 18234942960. Its totient is φ = 8281536768.

The previous prime is 12523044517. The next prime is 12523044559. The reversal of 12523044519 is 91544032521.

It is not a de Polignac number, because 12523044519 - 2¹ = 12523044517 is a prime.

It is a super-2 number, since 2×12523044519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523044517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 554847 + ... + 576975.

It is an arithmetic number, because the mean of its divisors is an integer number (759789290).

Almost surely, 2^12523044519 is an apocalyptic number.

12523044519 is a deficient number, since it is larger than the sum of its proper divisors (5711898441).

12523044519 is a wasteful number, since it uses less digits than its factorization.

12523044519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22639 (or 22636 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12523044519 in words is "twelve billion, five hundred twenty-three million, forty-four thousand, five hundred nineteen".