23740218405 has 24 divisors (see below), whose sum is σ = 41268326112. Its totient is φ = 12624953184.

The previous prime is 23740218329. The next prime is 23740218413. The reversal of 23740218405 is 50481204732.

It is a happy number.

23740218405 is a `hidden beast` number, since 2 + 37 + 4 + 0 + 218 + 405 = 666.

It is not a de Polignac number, because 23740218405 - 2¹³ = 23740210213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23740218405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744559 + ... + 775788.

It is an arithmetic number, because the mean of its divisors is an integer number (1719513588).

Almost surely, 2^23740218405 is an apocalyptic number.

It is an amenable number.

23740218405 is a deficient number, since it is larger than the sum of its proper divisors (17528107707).

23740218405 is a wasteful number, since it uses less digits than its factorization.

23740218405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520705 (or 1520702 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 23740218405 in words is "twenty-three billion, seven hundred forty million, two hundred eighteen thousand, four hundred five".