2045823673 has 8 divisors (see below), whose sum is σ = 2201678280. Its totient is φ = 1893914880.

The previous prime is 2045823671. The next prime is 2045823683. The reversal of 2045823673 is 3763285402.

It can be written as a sum of positive squares in 4 ways, for example, as 596727184 + 1449096489 = 24428^2 + 38067^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2045823673 - 2¹ = 2045823671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045823671) 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, 985378 + ... + 987451.

It is an arithmetic number, because the mean of its divisors is an integer number (275209785).

Almost surely, 2^2045823673 is an apocalyptic number.

It is an amenable number.

2045823673 is a deficient number, since it is larger than the sum of its proper divisors (155854607).

2045823673 is a wasteful number, since it uses less digits than its factorization.

2045823673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972907.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 2045823673 is about 45230.7823611310. The cubic root of 2045823673 is about 1269.4708509213.

The spelling of 2045823673 in words is "two billion, forty-five million, eight hundred twenty-three thousand, six hundred seventy-three".