12654943435 has 4 divisors (see below), whose sum is σ = 15185932128. Its totient is φ = 10123954744.

The previous prime is 12654943421. The next prime is 12654943439. The reversal of 12654943435 is 53434945621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12654943435 - 2¹³ = 12654935243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12654943439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265494339 + ... + 1265494348.

It is an arithmetic number, because the mean of its divisors is an integer number (3796483032).

Almost surely, 2^12654943435 is an apocalyptic number.

12654943435 is a deficient number, since it is larger than the sum of its proper divisors (2530988693).

12654943435 is an equidigital number, since it uses as much as digits as its factorization.

12654943435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530988692.

The product of its digits is 1555200, while the sum is 46.

The spelling of 12654943435 in words is "twelve billion, six hundred fifty-four million, nine hundred forty-three thousand, four hundred thirty-five".