16077479209 has 9 divisors (see below), whose sum is σ = 17673473181. Its totient is φ = 14614622220.

The previous prime is 16077479203. The next prime is 16077479233. The reversal of 16077479209 is 90297477061.

The square root of 16077479209 is 126797.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 16077479209 - 2¹⁹ = 16076954921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16077479203) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1389004 + ... + 1400530.

Almost surely, 2^16077479209 is an apocalyptic number.

16077479209 is the 126797-th square number.

16077479209 is the 63399-th centered octagonal number.

It is an amenable number.

16077479209 is a deficient number, since it is larger than the sum of its proper divisors (1595993972).

16077479209 is an frugal number, since it uses more digits than its factorization.

16077479209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23076 (or 11538 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 16077479209 in words is "sixteen billion, seventy-seven million, four hundred seventy-nine thousand, two hundred nine".