12695840535 has 32 divisors (see below), whose sum is σ = 23231572992. Its totient is φ = 5799732480.

The previous prime is 12695840447. The next prime is 12695840537. The reversal of 12695840535 is 53504859621.

It is not a de Polignac number, because 12695840535 - 2¹³ = 12695832343 is a prime.

It is a super-2 number, since 2×12695840535² (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 (12695840537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110155 + ... + 193715.

It is an arithmetic number, because the mean of its divisors is an integer number (725986656).

Almost surely, 2^12695840535 is an apocalyptic number.

12695840535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12695840535 is a deficient number, since it is larger than the sum of its proper divisors (10535732457).

12695840535 is a wasteful number, since it uses less digits than its factorization.

12695840535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85023.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 12695840535 in words is "twelve billion, six hundred ninety-five million, eight hundred forty thousand, five hundred thirty-five".