12489440515 has 16 divisors (see below), whose sum is σ = 15361632000. Its totient is φ = 9742797792.

The previous prime is 12489440503. The next prime is 12489440567. The reversal of 12489440515 is 51504498421.

It is a cyclic number.

It is not a de Polignac number, because 12489440515 - 2⁹ = 12489440003 is a prime.

It is a super-2 number, since 2×12489440515² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80296 + ... + 177274.

It is an arithmetic number, because the mean of its divisors is an integer number (960102000).

Almost surely, 2^12489440515 is an apocalyptic number.

12489440515 is a deficient number, since it is larger than the sum of its proper divisors (2872191485).

12489440515 is an equidigital number, since it uses as much as digits as its factorization.

12489440515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97626.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 12489440515 in words is "twelve billion, four hundred eighty-nine million, four hundred forty thousand, five hundred fifteen".