16374529369 has 9 divisors (see below), whose sum is σ = 17999996959. Its totient is φ = 14884656160.

The previous prime is 16374529361. The next prime is 16374529373. The reversal of 16374529369 is 96392547361.

The square root of 16374529369 is 127963.

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

It can be written as a sum of positive squares in only one way, i.e., 11116539225 + 5257990144 = 105435^2 + 72512^2 .

It is not a de Polignac number, because 16374529369 - 2³ = 16374529361 is a prime.

It is a super-2 number, since 2×16374529369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16374529361) 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, 1401777 + ... + 1413409.

Almost surely, 2^16374529369 is an apocalyptic number.

16374529369 is the 127963-rd square number.

16374529369 is the 63982-nd centered octagonal number.

It is an amenable number.

16374529369 is a deficient number, since it is larger than the sum of its proper divisors (1625467590).

16374529369 is an frugal number, since it uses more digits than its factorization.

16374529369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23288 (or 11644 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 55.

The spelling of 16374529369 in words is "sixteen billion, three hundred seventy-four million, five hundred twenty-nine thousand, three hundred sixty-nine".