1346781844442 has 16 divisors (see below), whose sum is σ = 2038973192520. Its totient is φ = 667125730368.

The previous prime is 1346781844427. The next prime is 1346781844523. The reversal of 1346781844442 is 2444481876431.

It can be written as a sum of positive squares in 4 ways, for example, as 1106937556321 + 239844288121 = 1052111^2 + 489739^2 .

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, 1282028 + ... + 2082584.

Almost surely, 2^{1346781844442} is an apocalyptic number.

1346781844442 is a deficient number, since it is larger than the sum of its proper divisors (692191348078).

1346781844442 is a wasteful number, since it uses less digits than its factorization.

1346781844442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808385.

The product of its digits is 16515072, while the sum is 56.

The spelling of 1346781844442 in words is "one trillion, three hundred forty-six billion, seven hundred eighty-one million, eight hundred forty-four thousand, four hundred forty-two".