12735437696 has 32 divisors (see below), whose sum is σ = 26246262600. Its totient is φ = 6148140544.

The previous prime is 12735437657. The next prime is 12735437761. The reversal of 12735437696 is 69673453721.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711730 + ... + 1719153.

Almost surely, 2^12735437696 is an apocalyptic number.

12735437696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12735437696 is an abundant number, since it is smaller than the sum of its proper divisors (13510824904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12735437696 is an equidigital number, since it uses as much as digits as its factorization.

12735437696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430926 (or 3430914 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 53.

The spelling of 12735437696 in words is "twelve billion, seven hundred thirty-five million, four hundred thirty-seven thousand, six hundred ninety-six".