1286694442474 has 16 divisors (see below), whose sum is σ = 2205831351168. Its totient is φ = 551423112912.

The previous prime is 1286694442457. The next prime is 1286694442483. The reversal of 1286694442474 is 4742444966821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981174 + ... + 1880449.

It is an arithmetic number, because the mean of its divisors is an integer number (137864459448).

Almost surely, 2^{1286694442474} is an apocalyptic number.

1286694442474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1286694442474 is a deficient number, since it is larger than the sum of its proper divisors (919136908694).

1286694442474 is a wasteful number, since it uses less digits than its factorization.

1286694442474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893749.

The product of its digits is 74317824, while the sum is 61.

The spelling of 1286694442474 in words is "one trillion, two hundred eighty-six billion, six hundred ninety-four million, four hundred forty-two thousand, four hundred seventy-four".