12743845431 has 8 divisors (see below), whose sum is σ = 17062890240. Its totient is φ = 8460348792.

The previous prime is 12743845427. The next prime is 12743845469. The reversal of 12743845431 is 13454834721.

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

It is not a de Polignac number, because 12743845431 - 2² = 12743845427 is a prime.

It is a super-2 number, since 2×12743845431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743845931) 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, 8886205 + ... + 8887638.

It is an arithmetic number, because the mean of its divisors is an integer number (2132861280).

Almost surely, 2^12743845431 is an apocalyptic number.

12743845431 is a deficient number, since it is larger than the sum of its proper divisors (4319044809).

12743845431 is a wasteful number, since it uses less digits than its factorization.

12743845431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774085.

The product of its digits is 322560, while the sum is 42.

The spelling of 12743845431 in words is "twelve billion, seven hundred forty-three million, eight hundred forty-five thousand, four hundred thirty-one".