180985619038 has 16 divisors (see below), whose sum is σ = 316592920800. Its totient is φ = 77565265008.

The previous prime is 180985619033. The next prime is 180985619047. The reversal of 180985619038 is 830916589081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180985619033) 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, 131913031 + ... + 131914402.

It is an arithmetic number, because the mean of its divisors is an integer number (19787057550).

Almost surely, 2^180985619038 is an apocalyptic number.

180985619038 is a deficient number, since it is larger than the sum of its proper divisors (135607301762).

180985619038 is an equidigital number, since it uses as much as digits as its factorization.

180985619038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263827456 (or 263827442 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 58.

The spelling of 180985619038 in words is "one hundred eighty billion, nine hundred eighty-five million, six hundred nineteen thousand, thirty-eight".