1840784006745 has 16 divisors (see below), whose sum is σ = 3272504901120. Its totient is φ = 981751470192.

The previous prime is 1840784006723. The next prime is 1840784006753. The reversal of 1840784006745 is 5476004870481.

It is not a de Polignac number, because 1840784006745 - 2⁸ = 1840784006489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1840784006691 and 1840784006700.

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 15 ways as a sum of consecutive naturals, for example, 6817718409 + ... + 6817718678.

It is an arithmetic number, because the mean of its divisors is an integer number (204531556320).

Almost surely, 2^{1840784006745} is an apocalyptic number.

1840784006745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1840784006745 is a deficient number, since it is larger than the sum of its proper divisors (1431720894375).

1840784006745 is a wasteful number, since it uses less digits than its factorization.

1840784006745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13635437101 (or 13635437095 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 1840784006745 in words is "one trillion, eight hundred forty billion, seven hundred eighty-four million, six thousand, seven hundred forty-five".