1045204045823 has 16 divisors (see below), whose sum is σ = 1195993927680. Its totient is φ = 894783234816.

The previous prime is 1045204045811. The next prime is 1045204045843. The reversal of 1045204045823 is 3285404025401.

It is a cyclic number.

It is not a de Polignac number, because 1045204045823 - 2²⁰ = 1045202997247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045204045843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76357886 + ... + 76371572.

It is an arithmetic number, because the mean of its divisors is an integer number (74749620480).

Almost surely, 2^{1045204045823} is an apocalyptic number.

1045204045823 is a deficient number, since it is larger than the sum of its proper divisors (150789881857).

1045204045823 is a wasteful number, since it uses less digits than its factorization.

1045204045823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 1045204045823 in words is "one trillion, forty-five billion, two hundred four million, forty-five thousand, eight hundred twenty-three".