23240640542432 has 48 divisors (see below), whose sum is σ = 49360566940272. Its totient is φ = 10730417817600.

The previous prime is 23240640542411. The next prime is 23240640542437. The reversal of 23240640542432 is 23424504604232.

It is a self number, because there is not a number n which added to its sum of digits gives 23240640542432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23240640542437) 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, 403006694 + ... + 403064357.

It is an arithmetic number, because the mean of its divisors is an integer number (1028345144589).

Almost surely, 2^{23240640542432} is an apocalyptic number.

It is an amenable number.

23240640542432 is an abundant number, since it is smaller than the sum of its proper divisors (26119926397840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23240640542432 is a wasteful number, since it uses less digits than its factorization.

23240640542432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806071131 (or 806071123 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 41.

The spelling of 23240640542432 in words is "twenty-three trillion, two hundred forty billion, six hundred forty million, five hundred forty-two thousand, four hundred thirty-two".