23511359409 has 8 divisors (see below), whose sum is σ = 31349367840. Its totient is φ = 15673795296.

The previous prime is 23511359393. The next prime is 23511359423. The reversal of 23511359409 is 90495311532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23511359409 - 2⁴ = 23511359393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23511359489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42877 + ... + 221045.

It is an arithmetic number, because the mean of its divisors is an integer number (3918670980).

Almost surely, 2^23511359409 is an apocalyptic number.

It is an amenable number.

23511359409 is a deficient number, since it is larger than the sum of its proper divisors (7838008431).

23511359409 is a wasteful number, since it uses less digits than its factorization.

23511359409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222159.

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 23511359409 in words is "twenty-three billion, five hundred eleven million, three hundred fifty-nine thousand, four hundred nine".