23151541445409 has 16 divisors (see below), whose sum is σ = 33244400642432. Its totient is φ = 14246604580608.

The previous prime is 23151541445393. The next prime is 23151541445467. The reversal of 23151541445409 is 90454414515132.

It is a happy number.

It is not a de Polignac number, because 23151541445409 - 2⁴ = 23151541445393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23151541445009) 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, 9239869 + ... + 11475114.

It is an arithmetic number, because the mean of its divisors is an integer number (2077775040152).

Almost surely, 2^{23151541445409} is an apocalyptic number.

It is an amenable number.

23151541445409 is a deficient number, since it is larger than the sum of its proper divisors (10092859197023).

23151541445409 is a wasteful number, since it uses less digits than its factorization.

23151541445409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20743656.

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

The spelling of 23151541445409 in words is "twenty-three trillion, one hundred fifty-one billion, five hundred forty-one million, four hundred forty-five thousand, four hundred nine".