180703880945 has 12 divisors (see below), whose sum is σ = 252247866804. Its totient is φ = 123911232480.

The previous prime is 180703880927. The next prime is 180703880947. The reversal of 180703880945 is 549088307081.

It can be written as a sum of positive squares in 2 ways, for example, as 38448935056 + 142254945889 = 196084^2 + 377167^2 .

It is not a de Polignac number, because 180703880945 - 2⁸ = 180703880689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180703880947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 368783186 + ... + 368783675.

It is an arithmetic number, because the mean of its divisors is an integer number (21020655567).

Almost surely, 2^180703880945 is an apocalyptic number.

It is an amenable number.

180703880945 is a deficient number, since it is larger than the sum of its proper divisors (71543985859).

180703880945 is an equidigital number, since it uses as much as digits as its factorization.

180703880945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737566880 (or 737566873 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 180703880945 in words is "one hundred eighty billion, seven hundred three million, eight hundred eighty thousand, nine hundred forty-five".