12451503551 has 8 divisors (see below), whose sum is σ = 12949907520. Its totient is φ = 11961619488.

The previous prime is 12451503527. The next prime is 12451503619. The reversal of 12451503551 is 15530515421.

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 12451503551 - 2³⁰ = 11377761727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451503521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126996 + ... + 2132841.

It is an arithmetic number, because the mean of its divisors is an integer number (1618738440).

Almost surely, 2^12451503551 is an apocalyptic number.

12451503551 is a deficient number, since it is larger than the sum of its proper divisors (498403969).

12451503551 is an equidigital number, since it uses as much as digits as its factorization.

12451503551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259953.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 12451503551 in words is "twelve billion, four hundred fifty-one million, five hundred three thousand, five hundred fifty-one".