1423480451409 has 27 divisors (see below), whose sum is σ = 2124770680539. Its totient is φ = 918302898960.

The previous prime is 1423480451377. The next prime is 1423480451431. The reversal of 1423480451409 is 9041540843241.

The square root of 1423480451409 is 1193097.

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

1423480451409 is a `hidden beast` number, since 1 + 4 + 23 + 480 + 4 + 5 + 140 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1118312595009 + 305167856400 = 1057503^2 + 552420^2 .

It is not a de Polignac number, because 1423480451409 - 2⁵ = 1423480451377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423480451479) 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, 110951607 + ... + 110964435.

Almost surely, 2^{1423480451409} is an apocalyptic number.

1423480451409 is the 1193097-th square number.

1423480451409 is the 596549-th centered octagonal number.

It is an amenable number.

1423480451409 is a deficient number, since it is larger than the sum of its proper divisors (701290229130).

1423480451409 is an frugal number, since it uses more digits than its factorization.

1423480451409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25726 (or 12863 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 1423480451409 in words is "one trillion, four hundred twenty-three billion, four hundred eighty million, four hundred fifty-one thousand, four hundred nine".