1904457745873 has 8 divisors (see below), whose sum is σ = 1924901025992. Its totient is φ = 1884030990336.

The previous prime is 1904457745867. The next prime is 1904457745877. The reversal of 1904457745873 is 3785477544091.

It can be written as a sum of positive squares in 4 ways, for example, as 739404864 + 1903718341009 = 27192^2 + 1379753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1904457745873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1904457745877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899340 + ... + 4360477.

It is an arithmetic number, because the mean of its divisors is an integer number (240612628249).

Almost surely, 2^{1904457745873} is an apocalyptic number.

It is an amenable number.

1904457745873 is a deficient number, since it is larger than the sum of its proper divisors (20443280119).

1904457745873 is an equidigital number, since it uses as much as digits as its factorization.

1904457745873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262291.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 1904457745873 in words is "one trillion, nine hundred four billion, four hundred fifty-seven million, seven hundred forty-five thousand, eight hundred seventy-three".