12771851254 has 16 divisors (see below), whose sum is σ = 19199249856. Its totient is φ = 6372115200.

The previous prime is 12771851233. The next prime is 12771851297. The reversal of 12771851254 is 45215817721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12771851254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3529254 + ... + 3532870.

It is an arithmetic number, because the mean of its divisors is an integer number (1199953116).

Almost surely, 2^12771851254 is an apocalyptic number.

12771851254 is a deficient number, since it is larger than the sum of its proper divisors (6427398602).

12771851254 is a wasteful number, since it uses less digits than its factorization.

12771851254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its digits is 156800, while the sum is 43.

The spelling of 12771851254 in words is "twelve billion, seven hundred seventy-one million, eight hundred fifty-one thousand, two hundred fifty-four".