12447132751 has 8 divisors (see below), whose sum is σ = 12495354624. Its totient is φ = 12398967840.

The previous prime is 12447132749. The next prime is 12447132773. The reversal of 12447132751 is 15723174421.

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 12447132751 - 2¹ = 12447132749 is a prime.

It is a super-2 number, since 2×12447132751² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12447132751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447132251) 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, 452961 + ... + 479653.

It is an arithmetic number, because the mean of its divisors is an integer number (1561919328).

Almost surely, 2^12447132751 is an apocalyptic number.

12447132751 is a deficient number, since it is larger than the sum of its proper divisors (48221873).

12447132751 is a wasteful number, since it uses less digits than its factorization.

12447132751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28481.

The product of its digits is 47040, while the sum is 37.

The spelling of 12447132751 in words is "twelve billion, four hundred forty-seven million, one hundred thirty-two thousand, seven hundred fifty-one".