12735474527 has 4 divisors (see below), whose sum is σ = 13405762680. Its totient is φ = 12065186376.

The previous prime is 12735474523. The next prime is 12735474593. The reversal of 12735474527 is 72547453721.

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 12735474527 - 2² = 12735474523 is a prime.

It is a super-2 number, since 2×12735474527² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735474523) 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, 335144048 + ... + 335144085.

It is an arithmetic number, because the mean of its divisors is an integer number (3351440670).

Almost surely, 2^12735474527 is an apocalyptic number.

12735474527 is a deficient number, since it is larger than the sum of its proper divisors (670288153).

12735474527 is an equidigital number, since it uses as much as digits as its factorization.

12735474527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670288152.

The product of its digits is 1646400, while the sum is 47.

The spelling of 12735474527 in words is "twelve billion, seven hundred thirty-five million, four hundred seventy-four thousand, five hundred twenty-seven".