12323647551691 has 48 divisors (see below), whose sum is σ = 15318531302400. Its totient is φ = 9863867325312.

The previous prime is 12323647551619. The next prime is 12323647551731. The reversal of 12323647551691 is 19615574632321.

12323647551691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12323647551691 - 2¹³ = 12323647543499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12323647581691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7146316 + ... + 8701558.

It is an arithmetic number, because the mean of its divisors is an integer number (319136068800).

Almost surely, 2^{12323647551691} is an apocalyptic number.

12323647551691 is a deficient number, since it is larger than the sum of its proper divisors (2994883750709).

12323647551691 is a wasteful number, since it uses less digits than its factorization.

12323647551691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555448 (or 1555441 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 55.

The spelling of 12323647551691 in words is "twelve trillion, three hundred twenty-three billion, six hundred forty-seven million, five hundred fifty-one thousand, six hundred ninety-one".