361989459816 has 64 divisors (see below), whose sum is σ = 923350648320. Its totient is φ = 118233743040.

The previous prime is 361989459803. The next prime is 361989459859. The reversal of 361989459816 is 618954989163.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373890 + ... + 929393.

It is an arithmetic number, because the mean of its divisors is an integer number (14427353880).

Almost surely, 2^361989459816 is an apocalyptic number.

It is an amenable number.

361989459816 is an abundant number, since it is smaller than the sum of its proper divisors (561361188504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361989459816 is a wasteful number, since it uses less digits than its factorization.

361989459816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303526 (or 1303522 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 69.

The spelling of 361989459816 in words is "three hundred sixty-one billion, nine hundred eighty-nine million, four hundred fifty-nine thousand, eight hundred sixteen".