1803967057945 has 16 divisors (see below), whose sum is σ = 2332095594192. Its totient is φ = 1331694524160.

The previous prime is 1803967057933. The next prime is 1803967057993. The reversal of 1803967057945 is 5497507693081.

It can be written as a sum of positive squares in 8 ways, for example, as 79241687001 + 1724725370944 = 281499^2 + 1313288^2 .

It is not a de Polignac number, because 1803967057945 - 2⁹ = 1803967057433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4664322 + ... + 5036251.

It is an arithmetic number, because the mean of its divisors is an integer number (145755974637).

Almost surely, 2^{1803967057945} is an apocalyptic number.

It is an amenable number.

1803967057945 is a deficient number, since it is larger than the sum of its proper divisors (528128536247).

1803967057945 is a wasteful number, since it uses less digits than its factorization.

1803967057945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9703452.

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 1803967057945 in words is "one trillion, eight hundred three billion, nine hundred sixty-seven million, fifty-seven thousand, nine hundred forty-five".