15454415432109 has 16 divisors (see below), whose sum is σ = 20640437839872. Its totient is φ = 10285679961648.

The previous prime is 15454415432017. The next prime is 15454415432149. The reversal of 15454415432109 is 90123451445451.

It is a happy number.

It is not a de Polignac number, because 15454415432109 - 2⁷ = 15454415431981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15454415432149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3863422 + ... + 6770144.

It is an arithmetic number, because the mean of its divisors is an integer number (1290027364992).

Almost surely, 2^{15454415432109} is an apocalyptic number.

It is an amenable number.

15454415432109 is a deficient number, since it is larger than the sum of its proper divisors (5186022407763).

15454415432109 is a wasteful number, since it uses less digits than its factorization.

15454415432109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909696.

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 15454415432109 in words is "fifteen trillion, four hundred fifty-four billion, four hundred fifteen million, four hundred thirty-two thousand, one hundred nine".