12547403723 has 8 divisors (see below), whose sum is σ = 12865965216. Its totient is φ = 12232483200.

The previous prime is 12547403663. The next prime is 12547403753. The reversal of 12547403723 is 32730474521.

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 12547403723 - 2¹⁶ = 12547338187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12547403753) 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, 903263 + ... + 917048.

It is an arithmetic number, because the mean of its divisors is an integer number (1608245652).

Almost surely, 2^12547403723 is an apocalyptic number.

12547403723 is a deficient number, since it is larger than the sum of its proper divisors (318561493).

12547403723 is a wasteful number, since it uses less digits than its factorization.

12547403723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820485.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 12547403723 in words is "twelve billion, five hundred forty-seven million, four hundred three thousand, seven hundred twenty-three".