12874717556 has 12 divisors (see below), whose sum is σ = 22532573700. Its totient is φ = 6436839360.

The previous prime is 12874717517. The next prime is 12874717561. The reversal of 12874717556 is 65571747821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9678624400 + 3196093156 = 98380^2 + 56534^2 .

It is a super-2 number, since 2×12874717556² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12874717498 and 12874717507.

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, 71135 + ... + 175526.

It is an arithmetic number, because the mean of its divisors is an integer number (1877714475).

Almost surely, 2^12874717556 is an apocalyptic number.

It is an amenable number.

12874717556 is a deficient number, since it is larger than the sum of its proper divisors (9657856144).

12874717556 is a wasteful number, since it uses less digits than its factorization.

12874717556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259714 (or 259712 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 53.

The spelling of 12874717556 in words is "twelve billion, eight hundred seventy-four million, seven hundred seventeen thousand, five hundred fifty-six".