12551126647 has 8 divisors (see below), whose sum is σ = 13217891760. Its totient is φ = 11884979520.

The previous prime is 12551126633. The next prime is 12551126669. The reversal of 12551126647 is 74662115521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12551126647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551126747) 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, 112504 + ... + 194317.

It is an arithmetic number, because the mean of its divisors is an integer number (1652236470).

Almost surely, 2^12551126647 is an apocalyptic number.

12551126647 is a deficient number, since it is larger than the sum of its proper divisors (666765113).

12551126647 is a wasteful number, since it uses less digits than its factorization.

12551126647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308993.

The product of its digits is 100800, while the sum is 40.

The spelling of 12551126647 in words is "twelve billion, five hundred fifty-one million, one hundred twenty-six thousand, six hundred forty-seven".