12775269816 has 24 divisors (see below), whose sum is σ = 34599689280. Its totient is φ = 4258423248.

The previous prime is 12775269809. The next prime is 12775269817. The reversal of 12775269816 is 61896257721.

12775269816 is a `hidden beast` number, since 1 + 27 + 7 + 526 + 98 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775269817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88717080 + ... + 88717223.

It is an arithmetic number, because the mean of its divisors is an integer number (1441653720).

Almost surely, 2^12775269816 is an apocalyptic number.

It is an amenable number.

12775269816 is an abundant number, since it is smaller than the sum of its proper divisors (21824419464).

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

12775269816 is a wasteful number, since it uses less digits than its factorization.

12775269816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177434315 (or 177434308 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 12775269816 in words is "twelve billion, seven hundred seventy-five million, two hundred sixty-nine thousand, eight hundred sixteen".