2781817149434 has 16 divisors (see below), whose sum is σ = 4287900453408. Its totient is φ = 1352559074832.

The previous prime is 2781817149413. The next prime is 2781817149443. The reversal of 2781817149434 is 4349417181872.

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, 10385984 + ... + 10650459.

It is an arithmetic number, because the mean of its divisors is an integer number (267993778338).

Almost surely, 2^{2781817149434} is an apocalyptic number.

2781817149434 is a deficient number, since it is larger than the sum of its proper divisors (1506083303974).

2781817149434 is a wasteful number, since it uses less digits than its factorization.

2781817149434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21038269.

The product of its digits is 10838016, while the sum is 59.

The spelling of 2781817149434 in words is "two trillion, seven hundred eighty-one billion, eight hundred seventeen million, one hundred forty-nine thousand, four hundred thirty-four".