1783207346845 has 32 divisors (see below), whose sum is σ = 2279322892800. Its totient is φ = 1335393759744.

The previous prime is 1783207346831. The next prime is 1783207346891. The reversal of 1783207346845 is 5486437023871.

It is a cyclic number.

It is not a de Polignac number, because 1783207346845 - 2²³ = 1783198958237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1783207346845.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 12552684 + ... + 12693946.

It is an arithmetic number, because the mean of its divisors is an integer number (71228840400).

Almost surely, 2^{1783207346845} is an apocalyptic number.

It is an amenable number.

1783207346845 is a deficient number, since it is larger than the sum of its proper divisors (496115545955).

1783207346845 is a wasteful number, since it uses less digits than its factorization.

1783207346845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142869.

The product of its (nonzero) digits is 27095040, while the sum is 58.

The spelling of 1783207346845 in words is "one trillion, seven hundred eighty-three billion, two hundred seven million, three hundred forty-six thousand, eight hundred forty-five".