12385747391 has 16 divisors (see below), whose sum is σ = 12942024480. Its totient is φ = 11842696320.

The previous prime is 12385747369. The next prime is 12385747399. The reversal of 12385747391 is 19374758321.

It is a cyclic number.

It is not a de Polignac number, because 12385747391 - 2¹⁰ = 12385746367 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 (12385747399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044725 + ... + 1056513.

It is an arithmetic number, because the mean of its divisors is an integer number (808876530).

Almost surely, 2^12385747391 is an apocalyptic number.

12385747391 is a deficient number, since it is larger than the sum of its proper divisors (556277089).

12385747391 is a wasteful number, since it uses less digits than its factorization.

12385747391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12346.

The product of its digits is 1270080, while the sum is 50.

The spelling of 12385747391 in words is "twelve billion, three hundred eighty-five million, seven hundred forty-seven thousand, three hundred ninety-one".