13788160929 has 21 divisors (see below), whose sum is σ = 20677539043. Its totient is φ = 9189993672.

The previous prime is 13788160909. The next prime is 13788160931. The reversal of 13788160929 is 92906188731.

The square root of 13788160929 is 117423.

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

13788160929 is a `hidden beast` number, since 1 + 3 + 7 + 8 + 8 + 1 + 609 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 308950929 + 13479210000 = 17577^2 + 116100^2 .

It is not a de Polignac number, because 13788160929 - 2⁷ = 13788160801 is a prime.

It is a super-2 number, since 2×13788160929² (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 (13788160909) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 3168247 + ... + 3172595.

Almost surely, 2^13788160929 is an apocalyptic number.

13788160929 is the 117423-rd square number.

13788160929 is the 58712-nd centered octagonal number.

It is an amenable number.

13788160929 is a deficient number, since it is larger than the sum of its proper divisors (6889378114).

13788160929 is an frugal number, since it uses more digits than its factorization.

13788160929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716 (or 4352 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 13788160929 in words is "thirteen billion, seven hundred eighty-eight million, one hundred sixty thousand, nine hundred twenty-nine".