12856260154 has 4 divisors (see below), whose sum is σ = 19284390234. Its totient is φ = 6428130076.

The previous prime is 12856260107. The next prime is 12856260163. The reversal of 12856260154 is 45106265821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9593223025 + 3263037129 = 97945^2 + 57123^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214065037 + ... + 3214065040.

Almost surely, 2^12856260154 is an apocalyptic number.

12856260154 is a deficient number, since it is larger than the sum of its proper divisors (6428130080).

12856260154 is an equidigital number, since it uses as much as digits as its factorization.

12856260154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428130079.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 12856260154 in words is "twelve billion, eight hundred fifty-six million, two hundred sixty thousand, one hundred fifty-four".