12451005515 has 8 divisors (see below), whose sum is σ = 16090530288. Its totient is φ = 9194588640.

The previous prime is 12451005491. The next prime is 12451005521. The reversal of 12451005515 is 51550015421.

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

It is a de Polignac number, because none of the positive numbers 2^k-12451005515 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95776901 + ... + 95777030.

It is an arithmetic number, because the mean of its divisors is an integer number (2011316286).

Almost surely, 2^12451005515 is an apocalyptic number.

12451005515 is a deficient number, since it is larger than the sum of its proper divisors (3639524773).

12451005515 is a wasteful number, since it uses less digits than its factorization.

12451005515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191553949.

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 12451005515 in words is "twelve billion, four hundred fifty-one million, five thousand, five hundred fifteen".