12873802945 has 8 divisors (see below), whose sum is σ = 15660188136. Its totient is φ = 10157959296.

The previous prime is 12873802943. The next prime is 12873802951. The reversal of 12873802945 is 54920837821.

It can be written as a sum of positive squares in 4 ways, for example, as 3903250576 + 8970552369 = 62476^2 + 94713^2 .

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 12873802945 - 2¹ = 12873802943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12873802943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17634982 + ... + 17635711.

It is an arithmetic number, because the mean of its divisors is an integer number (1957523517).

Almost surely, 2^12873802945 is an apocalyptic number.

It is an amenable number.

12873802945 is a deficient number, since it is larger than the sum of its proper divisors (2786385191).

12873802945 is an equidigital number, since it uses as much as digits as its factorization.

12873802945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35270771.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 12873802945 in words is "twelve billion, eight hundred seventy-three million, eight hundred two thousand, nine hundred forty-five".