23978759505 has 32 divisors (see below), whose sum is σ = 40640310144. Its totient is φ = 12031220736.

The previous prime is 23978759459. The next prime is 23978759537. The reversal of 23978759505 is 50595787932.

It is not a de Polignac number, because 23978759505 - 2¹⁹ = 23978235217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 612654 + ... + 650616.

It is an arithmetic number, because the mean of its divisors is an integer number (1270009692).

Almost surely, 2^23978759505 is an apocalyptic number.

It is an amenable number.

23978759505 is a deficient number, since it is larger than the sum of its proper divisors (16661550639).

23978759505 is a wasteful number, since it uses less digits than its factorization.

23978759505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40465.

The product of its (nonzero) digits is 23814000, while the sum is 60.

The spelling of 23978759505 in words is "twenty-three billion, nine hundred seventy-eight million, seven hundred fifty-nine thousand, five hundred five".