12245677891257 has 16 divisors (see below), whose sum is σ = 16715109523968. Its totient is φ = 7972230268800.

The previous prime is 12245677891241. The next prime is 12245677891267. The reversal of 12245677891257 is 75219877654221.

It is not a de Polignac number, because 12245677891257 - 2⁴ = 12245677891241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12245677891207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276791433 + ... + 276835670.

It is an arithmetic number, because the mean of its divisors is an integer number (1044694345248).

Almost surely, 2^{12245677891257} is an apocalyptic number.

It is an amenable number.

12245677891257 is a deficient number, since it is larger than the sum of its proper divisors (4469431632711).

12245677891257 is a wasteful number, since it uses less digits than its factorization.

12245677891257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553627280.

The product of its digits is 118540800, while the sum is 66.

The spelling of 12245677891257 in words is "twelve trillion, two hundred forty-five billion, six hundred seventy-seven million, eight hundred ninety-one thousand, two hundred fifty-seven".