1429930465209 has 27 divisors (see below), whose sum is σ = 2194192960687. Its totient is φ = 897173006784.

The previous prime is 1429930465181. The next prime is 1429930465241. The reversal of 1429930465209 is 9025640399241.

The square root of 1429930465209 is 1195797.

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

1429930465209 is a `hidden beast` number, since 1 + 4 + 29 + 93 + 0 + 4 + 6 + 520 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1113267663225 + 316662801984 = 1055115^2 + 562728^2 .

It is not a de Polignac number, because 1429930465209 - 2⁵ = 1429930465177 is a prime.

It is a super-2 number, since 2×1429930465209² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429930465289) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60973924 + ... + 60997370.

Almost surely, 2^{1429930465209} is an apocalyptic number.

1429930465209 is the 1195797-th square number.

1429930465209 is the 597899-th centered octagonal number.

It is an amenable number.

1429930465209 is a deficient number, since it is larger than the sum of its proper divisors (764262495478).

1429930465209 is an frugal number, since it uses more digits than its factorization.

1429930465209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46934 (or 23467 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 1429930465209 in words is "one trillion, four hundred twenty-nine billion, nine hundred thirty million, four hundred sixty-five thousand, two hundred nine".